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Finding the Fourth Proportional to 3,418.62, 5,129.13 and 1,444.74

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Solution

The fourth proportional to 3,418.62, 5,129.13 and 1,444.74 is: 2,167.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.62 : 5,129.13 = 1,444.74 : x
  2. Step 2: Convert to fraction form
    3,418.62/5,129.13 = 1,444.74/x
  3. Step 3: Cross multiply
    3,418.62x = 5,129.13 × 1,444.74
  4. Step 4: Simplify right side
    3,418.62x = 7,410,259.28
  5. Step 5: Solve for x
    x = 7,410,259.28/3,418.62
  6. Step 6: Final answer
    x = 2,167.62

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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.