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Finding the Fourth Proportional to 3,392.78, 5,089.11 and 1,084.30

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Solution

The fourth proportional to 3,392.78, 5,089.11 and 1,084.30 is: 1,626.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.78 : 5,089.11 = 1,084.30 : x
  2. Step 2: Convert to fraction form
    3,392.78/5,089.11 = 1,084.30/x
  3. Step 3: Cross multiply
    3,392.78x = 5,089.11 × 1,084.30
  4. Step 4: Simplify right side
    3,392.78x = 5,518,121.97
  5. Step 5: Solve for x
    x = 5,518,121.97/3,392.78
  6. Step 6: Final answer
    x = 1,626.43

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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.