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Finding the Fourth Proportional to 3,387.44, 5,081.20 and 1,334

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Solution

The fourth proportional to 3,387.44, 5,081.20 and 1,334 is: 2,001.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.44 : 5,081.20 = 1,334 : x
  2. Step 2: Convert to fraction form
    3,387.44/5,081.20 = 1,334/x
  3. Step 3: Cross multiply
    3,387.44x = 5,081.20 × 1,334
  4. Step 4: Simplify right side
    3,387.44x = 6,778,320.80
  5. Step 5: Solve for x
    x = 6,778,320.80/3,387.44
  6. Step 6: Final answer
    x = 2,001.02

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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.