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Finding the Fourth Proportional to 1,158.25, 1,737.12 and 541.63

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Solution

The fourth proportional to 1,158.25, 1,737.12 and 541.63 is: 812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.25 : 1,737.12 = 541.63 : x
  2. Step 2: Convert to fraction form
    1,158.25/1,737.12 = 541.63/x
  3. Step 3: Cross multiply
    1,158.25x = 1,737.12 × 541.63
  4. Step 4: Simplify right side
    1,158.25x = 940,876.31
  5. Step 5: Solve for x
    x = 940,876.31/1,158.25
  6. Step 6: Final answer
    x = 812.33

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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.