Question

Calculate a fourth proportional to the
numbers, 2.5, 1.5 and 1.5.​

Answer 1

Answer:

1.5,2.5,4.5,8.5

8.5 is the forth proportion

(1)+0.5=1.5 <=First proportion

(1+1)+0.5=2.5 <=Second proportion

(2+2)+0.5=4.5 <=Third proportion

(4+4)+0.5=8.5 <=Forth proportion

Like this we can find many other propotions afer that.

Hope it is helpfull

Step-by-step explanation:

May this ANSWER will help you plz mark has brainliest

Answer 2

Answer:

0.9 is the fourth proportional

Step-by-step explanation:

2.5 : 1.5 :: 1.5 : x

Product of means= Product of extremes

2.5x=1.5*1.5

2.5x=2.25

x=2.25/2.5

x=0.9