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Finding the Fourth Proportional to 3,398.92, 5,098.14 and 1,449.80

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Solution

The fourth proportional to 3,398.92, 5,098.14 and 1,449.80 is: 2,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.92 : 5,098.14 = 1,449.80 : x
  2. Step 2: Convert to fraction form
    3,398.92/5,098.14 = 1,449.80/x
  3. Step 3: Cross multiply
    3,398.92x = 5,098.14 × 1,449.80
  4. Step 4: Simplify right side
    3,398.92x = 7,391,283.37
  5. Step 5: Solve for x
    x = 7,391,283.37/3,398.92
  6. Step 6: Final answer
    x = 2,174.60

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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.