Question 657342
If the advantage = the ratio, you need the quotient of the two piston AREAS. Pistons are generally circular, though that is not stated. If so calculate the areas from their diameters since:


{{{A=pi*r^2}}}
Remember that r or the radius is half the diameter.

First piston:
{{{A=pi*1.55^2}}}
{{{A=pi*1.55^2}}}
{{{A=3.14159*2.403}}}
{{{A=7.55 cm^2}}}

Second piston:
{{{A=pi*1.125^2}}}
{{{A=pi*1.125^2}}}
{{{A=3.14159*1.27}}}
{{{A=3.98 cm^2}}}


Mech advantage = The ratio of the piston areas

Advantage = 7.55 cm^2/3.98 cm^2
Advantage = 1.90