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Finding the Fourth Proportional to 1,236.52, 1,853.17 and 925.93

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Solution

The fourth proportional to 1,236.52, 1,853.17 and 925.93 is: 1,387.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.52 : 1,853.17 = 925.93 : x
  2. Step 2: Convert to fraction form
    1,236.52/1,853.17 = 925.93/x
  3. Step 3: Cross multiply
    1,236.52x = 1,853.17 × 925.93
  4. Step 4: Simplify right side
    1,236.52x = 1,715,901.07
  5. Step 5: Solve for x
    x = 1,715,901.07/1,236.52
  6. Step 6: Final answer
    x = 1,387.69

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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.