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Finding the Fourth Proportional to 3,606.92, 4,972.56 and 2,279.96

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Solution

The fourth proportional to 3,606.92, 4,972.56 and 2,279.96 is: 3,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.92 : 4,972.56 = 2,279.96 : x
  2. Step 2: Convert to fraction form
    3,606.92/4,972.56 = 2,279.96/x
  3. Step 3: Cross multiply
    3,606.92x = 4,972.56 × 2,279.96
  4. Step 4: Simplify right side
    3,606.92x = 11,337,237.90
  5. Step 5: Solve for x
    x = 11,337,237.90/3,606.92
  6. Step 6: Final answer
    x = 3,143.19

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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.