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Finding the Fourth Proportional to 3,715.52, 5,125.74 and 2,388.74

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Solution

The fourth proportional to 3,715.52, 5,125.74 and 2,388.74 is: 3,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.52 : 5,125.74 = 2,388.74 : x
  2. Step 2: Convert to fraction form
    3,715.52/5,125.74 = 2,388.74/x
  3. Step 3: Cross multiply
    3,715.52x = 5,125.74 × 2,388.74
  4. Step 4: Simplify right side
    3,715.52x = 12,244,060.17
  5. Step 5: Solve for x
    x = 12,244,060.17/3,715.52
  6. Step 6: Final answer
    x = 3,295.38

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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.