Option 1 is a proportion.
To check if two ratios are proportional, we cross-multiply and see if the product of the means equal the product of the extremes. In this case,
For Option 1:
7 x 22 = 8 x 20
154 = 160
The products of the means and extremes are equal indicating that the ratios are proportional.
For Option 2:
7 x 24 ≠ 8 x 21
168 ≠ 168
The products of the means and extremes are not equal indicating that the ratios are not proportional.
Which of the following, Option 1 or Option 2, is a proportion?
Option 1: 7/8=20/22
Option 2: 7/8=21/24
3 answers
option 2
ANSWER = option 2 is a proportion. (option 2 is 7/8 = 21/24) :D