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Finding the Fourth Proportional to 1,227.37, 1,836.43 and 731.95

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Solution

The fourth proportional to 1,227.37, 1,836.43 and 731.95 is: 1,095.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.37 : 1,836.43 = 731.95 : x
  2. Step 2: Convert to fraction form
    1,227.37/1,836.43 = 731.95/x
  3. Step 3: Cross multiply
    1,227.37x = 1,836.43 × 731.95
  4. Step 4: Simplify right side
    1,227.37x = 1,344,174.94
  5. Step 5: Solve for x
    x = 1,344,174.94/1,227.37
  6. Step 6: Final answer
    x = 1,095.17

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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.