Ratios and proportions are basic math concepts that help us compare two or more quantities. They are used to understand how things relate to each other, like mixing ingredients for a recipe or dividing something fairly, or budgeting.
Examples :
- If a recipe calls for 2 cups of flour and 1 cup of sugar for 1 servings, the ratio of flour to sugar is 2:1 thus we can determine the ingredients for more servings. and the amount of sugar and flour is directly proportion to the number of servings.
- Ratios are used in dosing medications, especially when adjusting amounts based on age or weight.
- In a square the perimeter is directly proportion to its sides and the ratio of perimeter and sides remain the same.
For Beginners
In this section, you'll learn the foundational concepts of ratios and proportions, including their formulas, types (direct and inverse), and how they are applied in real-life scenarios to solve practical problems.
- Introduction
- Ratio
- Ratio formula
- Proportions
- Direct Proportions
- Inverse Proportions
- Uses of Ratio and Proportion in Real Life
Practice
In this section, you'll find various practice questions on ratios and proportions, ranging from basic to advanced levels, along with quizzes to test your understanding and prepare for exams like SAT Math.
- Ratio and Proportions – Aptitude Questions & Answers
- Ratio and Proportions Practice Questions - Basic
- Ratio and Proportions Practice Questions - Advanced
- Ratio and Proportions - Quiz
- Ratios and Proportions - SAT Math Quiz
For Programmers
This section explores ratio and proportion problems in programming, including checking proportions, calculating sums, and solving array-related ratio problems.
- Check whether the given integers a, b, c and d are in proportion
- Sum of two numbers if the original ratio and new ratio is given
- Ratio of area of a rectangle with the rectangle inscribed in it
- Program to find the common ratio of three numbers
- Minimize the sum of changes in the array such that the ratio of the new element to the array sum is at most p: q
- Count of pairs in given Array having same ratio