Home / 3,909.31-5,863.75-1,443.92

Finding the Fourth Proportional to 3,909.31, 5,863.75 and 1,443.92

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Solution

The fourth proportional to 3,909.31, 5,863.75 and 1,443.92 is: 2,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.31 : 5,863.75 = 1,443.92 : x
  2. Step 2: Convert to fraction form
    3,909.31/5,863.75 = 1,443.92/x
  3. Step 3: Cross multiply
    3,909.31x = 5,863.75 × 1,443.92
  4. Step 4: Simplify right side
    3,909.31x = 8,466,785.90
  5. Step 5: Solve for x
    x = 8,466,785.90/3,909.31
  6. Step 6: Final answer
    x = 2,165.80

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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.