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Finding the Fourth Proportional to 966.72, 1,332.77 and 756.08

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Solution

The fourth proportional to 966.72, 1,332.77 and 756.08 is: 1,042.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.72 : 1,332.77 = 756.08 : x
  2. Step 2: Convert to fraction form
    966.72/1,332.77 = 756.08/x
  3. Step 3: Cross multiply
    966.72x = 1,332.77 × 756.08
  4. Step 4: Simplify right side
    966.72x = 1,007,680.74
  5. Step 5: Solve for x
    x = 1,007,680.74/966.72
  6. Step 6: Final answer
    x = 1,042.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.