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Finding the Fourth Proportional to 5,398.65, 8,098.84 and 2,279.12

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Solution

The fourth proportional to 5,398.65, 8,098.84 and 2,279.12 is: 3,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.65 : 8,098.84 = 2,279.12 : x
  2. Step 2: Convert to fraction form
    5,398.65/8,098.84 = 2,279.12/x
  3. Step 3: Cross multiply
    5,398.65x = 8,098.84 × 2,279.12
  4. Step 4: Simplify right side
    5,398.65x = 18,458,213.35
  5. Step 5: Solve for x
    x = 18,458,213.35/5,398.65
  6. Step 6: Final answer
    x = 3,419.04

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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.