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Finding the Fourth Proportional to 671.92, 925.13 and 610.40

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Solution

The fourth proportional to 671.92, 925.13 and 610.40 is: 840.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.92 : 925.13 = 610.40 : x
  2. Step 2: Convert to fraction form
    671.92/925.13 = 610.40/x
  3. Step 3: Cross multiply
    671.92x = 925.13 × 610.40
  4. Step 4: Simplify right side
    671.92x = 564,696.30
  5. Step 5: Solve for x
    x = 564,696.30/671.92
  6. Step 6: Final answer
    x = 840.43

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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.