Home / 3,960.52-5,459.30-2,631.92

Finding the Fourth Proportional to 3,960.52, 5,459.30 and 2,631.92

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Solution

The fourth proportional to 3,960.52, 5,459.30 and 2,631.92 is: 3,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.52 : 5,459.30 = 2,631.92 : x
  2. Step 2: Convert to fraction form
    3,960.52/5,459.30 = 2,631.92/x
  3. Step 3: Cross multiply
    3,960.52x = 5,459.30 × 2,631.92
  4. Step 4: Simplify right side
    3,960.52x = 14,368,425.62
  5. Step 5: Solve for x
    x = 14,368,425.62/3,960.52
  6. Step 6: Final answer
    x = 3,627.91

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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.