Compared to the inertia of a 1 kg mass, the inertia of a 4 kg mass is how many times great?

The inertia of an object is directly proportional to its mass. Inertia is a measure of an object's resistance to changes in its state of motion. According to Newton's second law of motion, the inertia of an object can be quantified by its mass. In this case, we have a 1 kg mass and a 4 kg mass. To compare their inertia, we can determine how many times greater the inertia of the 4 kg mass is compared to the 1 kg mass. Since the inertia is directly proportional to mass, we can say that the inertia of the 4 kg mass is four times greater than the inertia of the 1 kg mass. Therefore, the inertia of a 4 kg mass is four times greater than the inertia of a 1 kg mass.