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Finding the Fourth Proportional to 1,262.05, 1,893.27 and 531.73

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Solution

The fourth proportional to 1,262.05, 1,893.27 and 531.73 is: 797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.05 : 1,893.27 = 531.73 : x
  2. Step 2: Convert to fraction form
    1,262.05/1,893.27 = 531.73/x
  3. Step 3: Cross multiply
    1,262.05x = 1,893.27 × 531.73
  4. Step 4: Simplify right side
    1,262.05x = 1,006,712.82
  5. Step 5: Solve for x
    x = 1,006,712.82/1,262.05
  6. Step 6: Final answer
    x = 797.68

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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.