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Finding the Fourth Proportional to 3,793, 5,689.20 and 1,327.56

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Solution

The fourth proportional to 3,793, 5,689.20 and 1,327.56 is: 1,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793 : 5,689.20 = 1,327.56 : x
  2. Step 2: Convert to fraction form
    3,793/5,689.20 = 1,327.56/x
  3. Step 3: Cross multiply
    3,793x = 5,689.20 × 1,327.56
  4. Step 4: Simplify right side
    3,793x = 7,552,754.35
  5. Step 5: Solve for x
    x = 7,552,754.35/3,793
  6. Step 6: Final answer
    x = 1,991.23

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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.