A proportion is a statement that two ratios are equal. It is a comparison of two quantities that are in the form of ratios.
For example, suppose that we need to mix 3 cups of water with 4 cups of lemonade to make a pitcher of 7 cups. We can write the proportion as:
3/7 = 4/7
This means that the ratio of water to the total volume of the pitcher is equal to the ratio of lemonade to the total volume of the pitcher. As another example, consider the proportion:
10/15 = 2/3
This means that the ratio of 10 to 15 is equivalent to the ratio of 2 to 3, which can also be written as the fraction 10/15 is equal to the fraction 2/3.
proportion
definition and example
1 answer