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Finding the Fourth Proportional to 3,979.90, 5,962.50 and 2,003.24

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Solution

The fourth proportional to 3,979.90, 5,962.50 and 2,003.24 is: 3,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.90 : 5,962.50 = 2,003.24 : x
  2. Step 2: Convert to fraction form
    3,979.90/5,962.50 = 2,003.24/x
  3. Step 3: Cross multiply
    3,979.90x = 5,962.50 × 2,003.24
  4. Step 4: Simplify right side
    3,979.90x = 11,944,318.50
  5. Step 5: Solve for x
    x = 11,944,318.50/3,979.90
  6. Step 6: Final answer
    x = 3,001.16

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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.