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Finding the Fourth Proportional to 3,718.92, 5,580.24 and 2,630.28

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Solution

The fourth proportional to 3,718.92, 5,580.24 and 2,630.28 is: 3,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.92 : 5,580.24 = 2,630.28 : x
  2. Step 2: Convert to fraction form
    3,718.92/5,580.24 = 2,630.28/x
  3. Step 3: Cross multiply
    3,718.92x = 5,580.24 × 2,630.28
  4. Step 4: Simplify right side
    3,718.92x = 14,677,593.67
  5. Step 5: Solve for x
    x = 14,677,593.67/3,718.92
  6. Step 6: Final answer
    x = 3,946.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.