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Finding the Fourth Proportional to 3,952.39, 5,916.15 and 2,712.55

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Solution

The fourth proportional to 3,952.39, 5,916.15 and 2,712.55 is: 4,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.39 : 5,916.15 = 2,712.55 : x
  2. Step 2: Convert to fraction form
    3,952.39/5,916.15 = 2,712.55/x
  3. Step 3: Cross multiply
    3,952.39x = 5,916.15 × 2,712.55
  4. Step 4: Simplify right side
    3,952.39x = 16,047,852.68
  5. Step 5: Solve for x
    x = 16,047,852.68/3,952.39
  6. Step 6: Final answer
    x = 4,060.29

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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.