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Finding the Fourth Proportional to 4,481.39, 6,721.19 and 4,259.12

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Solution

The fourth proportional to 4,481.39, 6,721.19 and 4,259.12 is: 6,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.39 : 6,721.19 = 4,259.12 : x
  2. Step 2: Convert to fraction form
    4,481.39/6,721.19 = 4,259.12/x
  3. Step 3: Cross multiply
    4,481.39x = 6,721.19 × 4,259.12
  4. Step 4: Simplify right side
    4,481.39x = 28,626,350.17
  5. Step 5: Solve for x
    x = 28,626,350.17/4,481.39
  6. Step 6: Final answer
    x = 6,387.83

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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.