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Finding the Fourth Proportional to 756.32, 1,044 and 677.50

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Solution

The fourth proportional to 756.32, 1,044 and 677.50 is: 935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756.32 : 1,044 = 677.50 : x
  2. Step 2: Convert to fraction form
    756.32/1,044 = 677.50/x
  3. Step 3: Cross multiply
    756.32x = 1,044 × 677.50
  4. Step 4: Simplify right side
    756.32x = 707,307.39
  5. Step 5: Solve for x
    x = 707,307.39/756.32
  6. Step 6: Final answer
    x = 935.20

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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.