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Finding the Fourth Proportional to 3,344.78, 5,018.39 and 1,154.13

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Solution

The fourth proportional to 3,344.78, 5,018.39 and 1,154.13 is: 1,731.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,344.78 : 5,018.39 = 1,154.13 : x
  2. Step 2: Convert to fraction form
    3,344.78/5,018.39 = 1,154.13/x
  3. Step 3: Cross multiply
    3,344.78x = 5,018.39 × 1,154.13
  4. Step 4: Simplify right side
    3,344.78x = 5,791,868.68
  5. Step 5: Solve for x
    x = 5,791,868.68/3,344.78
  6. Step 6: Final answer
    x = 1,731.62

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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.