A student wants to compare the luminous flux of a lightbulb with that of a 1750 lumen lamp. The lightbulb ...

A student wants to compare the luminous flux of a lightbulb with that of a 1750 lumen lamp. The lightbulb and the lamp illuminate a sheet of paper equally. The 1750 lumen lamp is 1.25 meters away from the sheet of paper; the lightbulb is 1.08 meters away. What is the lightbulb's luminous flux?