Question

find the third proportional of 3.6 5.4 step by step ​

Answer 1

Given: Two proportions 3.6 5.4

To find: The third proportion of given two proportions.

Solution:

• Now we have given two proportions as:

                  3.6 / 5.4

• Let the third proportion be: x

• Then:

                  3.6 / 5.4 = 5.4 / x

• Now solving it by cross multiplication, we get:

                  x = 5.4 x 5.4 / 3.6

                  x = 1.8 x 5.4 / 1.2

                  x = 0.6 x 5.4 / 0.4

                  x = 0.3 x 5.4 / 0.2

                  x = 0.3 x 2.7

                  x = 8.1

Answer:

              So the third proportion is 8.1