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Finding the Fourth Proportional to 3,859.92, 5,325.03 and 2,287.17

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Solution

The fourth proportional to 3,859.92, 5,325.03 and 2,287.17 is: 3,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.92 : 5,325.03 = 2,287.17 : x
  2. Step 2: Convert to fraction form
    3,859.92/5,325.03 = 2,287.17/x
  3. Step 3: Cross multiply
    3,859.92x = 5,325.03 × 2,287.17
  4. Step 4: Simplify right side
    3,859.92x = 12,179,248.87
  5. Step 5: Solve for x
    x = 12,179,248.87/3,859.92
  6. Step 6: Final answer
    x = 3,155.31

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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.