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Finding the Fourth Proportional to 2,944.55, 4,415.82 and 863.97

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Solution

The fourth proportional to 2,944.55, 4,415.82 and 863.97 is: 1,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,944.55 : 4,415.82 = 863.97 : x
  2. Step 2: Convert to fraction form
    2,944.55/4,415.82 = 863.97/x
  3. Step 3: Cross multiply
    2,944.55x = 4,415.82 × 863.97
  4. Step 4: Simplify right side
    2,944.55x = 3,815,116.21
  5. Step 5: Solve for x
    x = 3,815,116.21/2,944.55
  6. Step 6: Final answer
    x = 1,295.65

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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.