Question

find the third proportion of 6 and 4.5?

Answer 1

6 : 4.5 :: 4.5 : x
Therefore x = (4.5)²/6
= 20.25/6 = 3.375

Answer 2

Answer:

let the third proportion be x,

then the fourth proportion to 4.5,6,6 is x.

thus, 4.5:6::6:x.

Product of extreme = product of mean.

4.5*x=6*6

x= 6*6/4.5

x=12/4.5=8

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