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Finding the Fourth Proportional to 5,334.48, 8,001.87 and 1,438.88

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Solution

The fourth proportional to 5,334.48, 8,001.87 and 1,438.88 is: 2,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,334.48 : 8,001.87 = 1,438.88 : x
  2. Step 2: Convert to fraction form
    5,334.48/8,001.87 = 1,438.88/x
  3. Step 3: Cross multiply
    5,334.48x = 8,001.87 × 1,438.88
  4. Step 4: Simplify right side
    5,334.48x = 11,513,685.30
  5. Step 5: Solve for x
    x = 11,513,685.30/5,334.48
  6. Step 6: Final answer
    x = 2,158.35

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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.