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Finding the Fourth Proportional to 3,997.52, 5,992.08 and 1,398.52

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Solution

The fourth proportional to 3,997.52, 5,992.08 and 1,398.52 is: 2,096.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.52 : 5,992.08 = 1,398.52 : x
  2. Step 2: Convert to fraction form
    3,997.52/5,992.08 = 1,398.52/x
  3. Step 3: Cross multiply
    3,997.52x = 5,992.08 × 1,398.52
  4. Step 4: Simplify right side
    3,997.52x = 8,380,043.72
  5. Step 5: Solve for x
    x = 8,380,043.72/3,997.52
  6. Step 6: Final answer
    x = 2,096.31

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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.