Question

if 2,x,30 and 45 are in proportion find the value of x​

Answer 1

$Given \: 2,x,30\:and \:45\: are \: in \: proportion$

$2 : x : : 30 : 45$

$\implies Product \:of \:means \\= Product \:of \:Extremes$

$\implies x \times 30 = 2 \times 45$

$\implies x = \frac{2 \times 45}{30}$

$\implies x = 3$

Therefore.,

$\red { Value \:of \:x }\green { = 3 }$

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