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Finding the Fourth Proportional to 671.34, 925.77 and 560.77

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Solution

The fourth proportional to 671.34, 925.77 and 560.77 is: 773.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.34 : 925.77 = 560.77 : x
  2. Step 2: Convert to fraction form
    671.34/925.77 = 560.77/x
  3. Step 3: Cross multiply
    671.34x = 925.77 × 560.77
  4. Step 4: Simplify right side
    671.34x = 519,144.04
  5. Step 5: Solve for x
    x = 519,144.04/671.34
  6. Step 6: Final answer
    x = 773.30

Related Problems

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Half scale
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Double scale
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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.