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Finding the Fourth Proportional to 5,335.46, 8,003.19 and 1,439.87

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Solution

The fourth proportional to 5,335.46, 8,003.19 and 1,439.87 is: 2,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.46 : 8,003.19 = 1,439.87 : x
  2. Step 2: Convert to fraction form
    5,335.46/8,003.19 = 1,439.87/x
  3. Step 3: Cross multiply
    5,335.46x = 8,003.19 × 1,439.87
  4. Step 4: Simplify right side
    5,335.46x = 11,523,513.17
  5. Step 5: Solve for x
    x = 11,523,513.17/5,335.46
  6. Step 6: Final answer
    x = 2,159.80

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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.