Question

Find the mean proportion to 0.7 and 2.8​

Answer 1

Answer:

0.7× m = m×2.8

product of means = product of extremes

m² = 0.7×2.8

m²=0.56

√m²=√0.56

m=0.74833147735

Answer 2

The mean proportional would be 1.4.

Step-by-step explanation:

Let the mean proportion be 'x'.

So, it becomes,

0.7 : x : x : 2.8

According to question, it becomes,

As we know that

Product of extremes = Product of means

$0.7\times 2.8=x^2\\\\1.96=x^2\\\\x=\sqrt{1.96}\\\\x=1.4$

Hence, the mean proportional would be 1.4.

# learn more:

2.8 ,14,3.5 find the forth proportion

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