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Finding the Fourth Proportional to 561.96, 773.90 and 560.14

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Solution

The fourth proportional to 561.96, 773.90 and 560.14 is: 771.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.96 : 773.90 = 560.14 : x
  2. Step 2: Convert to fraction form
    561.96/773.90 = 560.14/x
  3. Step 3: Cross multiply
    561.96x = 773.90 × 560.14
  4. Step 4: Simplify right side
    561.96x = 433,492.35
  5. Step 5: Solve for x
    x = 433,492.35/561.96
  6. Step 6: Final answer
    x = 771.39

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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.