Question

Find the fourth proportional of 8.1,1.2,2.7.​

Answer 1

Answer:

0.4

Step-by-step explanation:

1.2*2.7/8.1 is the answer

Answer 2

$\sf \Large Solution!!$

$\sf \to Let\:the\:fourth\: proportion\:be\:x$

$\sf \to 8.1:1.2::2.7:x\quad (Product\:of\:means=Product\:of\:extremes)$

$\sf \large So,$

$\sf \to 8.1x=2.7\times 1.2$

$\sf \to x=\dfrac{2\cancel .7\times 1.2}{8\cancel .1}$

$\sf \to x=\dfrac{\cancel{27}\times 1.2}{\cancel{81}\;^{3}}$

$\sf \to x=\dfrac{1.2}{3}$

$\sf \to x=0.4$

$\sf \large The\:fourth\:proportion=0.4$

Thanks for asking!! :)