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Finding the Fourth Proportional to 3,997.87, 5,998.97 and 1,659.47

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Solution

The fourth proportional to 3,997.87, 5,998.97 and 1,659.47 is: 2,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.87 : 5,998.97 = 1,659.47 : x
  2. Step 2: Convert to fraction form
    3,997.87/5,998.97 = 1,659.47/x
  3. Step 3: Cross multiply
    3,997.87x = 5,998.97 × 1,659.47
  4. Step 4: Simplify right side
    3,997.87x = 9,955,127.71
  5. Step 5: Solve for x
    x = 9,955,127.71/3,997.87
  6. Step 6: Final answer
    x = 2,490.11

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1.5x scale

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.