Is it possible for a speed and frequency to be proportional?

Yes, it is possible for speed and frequency to be proportional. In general, speed is defined as the rate at which an object moves, while frequency is the number of occurrences of a repeating event per unit of time. If the speed of an object is increasing, the frequency of its movement will also increase proportionally. This relationship is commonly seen in wave phenomena, where the speed of a wave is directly proportional to its frequency.