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Finding the Fourth Proportional to 3,998.92, 5,996.52 and 1,224.88

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Solution

The fourth proportional to 3,998.92, 5,996.52 and 1,224.88 is: 1,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.92 : 5,996.52 = 1,224.88 : x
  2. Step 2: Convert to fraction form
    3,998.92/5,996.52 = 1,224.88/x
  3. Step 3: Cross multiply
    3,998.92x = 5,996.52 × 1,224.88
  4. Step 4: Simplify right side
    3,998.92x = 7,345,017.42
  5. Step 5: Solve for x
    x = 7,345,017.42/3,998.92
  6. Step 6: Final answer
    x = 1,836.75

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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.