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Chapter 7: Problem 37

What is a proportion? Give an example with your description.

Short Answer

Expert verified
A proportion is a mathematical term that explains an equality of two ratios. For instance, 10/20 = 50/100 is an example of a proportion. Here, 10, 20, 50 and 100 are said to be in proportion because 10 to 20 is as 50 to 100.

Step by step solution

01

Defining Proportions

A proportion is a mathematical term that describes two equal ratios. If a/b = c/d, then a, b, c, d are said to be in proportion. We say that a is to b as c is to d.
02

An Example

Let's take an example to illustrate this concept. If we have 10 apples and 20 oranges, we can say the ratio of apples to oranges is 1:2 (10 divided by 20 gives 0.5 or 1/2). In a different scenario, say we have 50 apples and 100 oranges. The ratio of apples to oranges remains the same, that is 1:2 (50 divided by 100 gives 0.5 or 1/2). Therefore, we can write these ratios in proportion as 10/20 = 50/100. Hence, 10, 20, 50, 100 can be said to be in proportion.

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