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Finding the Fourth Proportional to 2,092.56, 3,138.39 and 922.92

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Solution

The fourth proportional to 2,092.56, 3,138.39 and 922.92 is: 1,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.56 : 3,138.39 = 922.92 : x
  2. Step 2: Convert to fraction form
    2,092.56/3,138.39 = 922.92/x
  3. Step 3: Cross multiply
    2,092.56x = 3,138.39 × 922.92
  4. Step 4: Simplify right side
    2,092.56x = 2,896,482.90
  5. Step 5: Solve for x
    x = 2,896,482.90/2,092.56
  6. Step 6: Final answer
    x = 1,384.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.