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Finding the Fourth Proportional to 3,335.79, 5,003.85 and 1,487.03

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Solution

The fourth proportional to 3,335.79, 5,003.85 and 1,487.03 is: 2,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.79 : 5,003.85 = 1,487.03 : x
  2. Step 2: Convert to fraction form
    3,335.79/5,003.85 = 1,487.03/x
  3. Step 3: Cross multiply
    3,335.79x = 5,003.85 × 1,487.03
  4. Step 4: Simplify right side
    3,335.79x = 7,440,850.05
  5. Step 5: Solve for x
    x = 7,440,850.05/3,335.79
  6. Step 6: Final answer
    x = 2,230.61

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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.