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Finding the Fourth Proportional to 3,099.98, 4,650.21 and 1,251.11

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Solution

The fourth proportional to 3,099.98, 4,650.21 and 1,251.11 is: 1,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.98 : 4,650.21 = 1,251.11 : x
  2. Step 2: Convert to fraction form
    3,099.98/4,650.21 = 1,251.11/x
  3. Step 3: Cross multiply
    3,099.98x = 4,650.21 × 1,251.11
  4. Step 4: Simplify right side
    3,099.98x = 5,817,935.86
  5. Step 5: Solve for x
    x = 5,817,935.86/3,099.98
  6. Step 6: Final answer
    x = 1,876.76

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1.5x scale

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.