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Finding the Fourth Proportional to 1,856.55, 2,791.22 and 1,493.88

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Solution

The fourth proportional to 1,856.55, 2,791.22 and 1,493.88 is: 2,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.55 : 2,791.22 = 1,493.88 : x
  2. Step 2: Convert to fraction form
    1,856.55/2,791.22 = 1,493.88/x
  3. Step 3: Cross multiply
    1,856.55x = 2,791.22 × 1,493.88
  4. Step 4: Simplify right side
    1,856.55x = 4,169,747.73
  5. Step 5: Solve for x
    x = 4,169,747.73/1,856.55
  6. Step 6: Final answer
    x = 2,245.97

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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.