What musical interval corresponds with Vitruvius's theory of proportion?

Question

Quizplus · Accepted Answer

Vitruvius's theory of proportion, as outlined in his treatise on architecture, correlates with the musical interval of the octave. This is because he discussed the harmony and proportions in architecture in terms that can be related to the harmonics of music, where the octave represents a fundamental relationship of doubling or halving frequencies, embodying a perfect harmony that he sought in architectural design as well.

What Musical Interval Corresponds with Vitruvius's Theory of Proportion