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Finding the Fourth Proportional to 2,793.32, 4,184.10 and 1,331

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Solution

The fourth proportional to 2,793.32, 4,184.10 and 1,331 is: 1,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.32 : 4,184.10 = 1,331 : x
  2. Step 2: Convert to fraction form
    2,793.32/4,184.10 = 1,331/x
  3. Step 3: Cross multiply
    2,793.32x = 4,184.10 × 1,331
  4. Step 4: Simplify right side
    2,793.32x = 5,569,037.10
  5. Step 5: Solve for x
    x = 5,569,037.10/2,793.32
  6. Step 6: Final answer
    x = 1,993.70

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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.