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Finding the Fourth Proportional to 1,805.73, 2,704.27 and 981.96

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Solution

The fourth proportional to 1,805.73, 2,704.27 and 981.96 is: 1,470.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.73 : 2,704.27 = 981.96 : x
  2. Step 2: Convert to fraction form
    1,805.73/2,704.27 = 981.96/x
  3. Step 3: Cross multiply
    1,805.73x = 2,704.27 × 981.96
  4. Step 4: Simplify right side
    1,805.73x = 2,655,484.97
  5. Step 5: Solve for x
    x = 2,655,484.97/1,805.73
  6. Step 6: Final answer
    x = 1,470.59

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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.