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Finding the Fourth Proportional to 7,951.20, 11,922.96 and 2,950.12

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Solution

The fourth proportional to 7,951.20, 11,922.96 and 2,950.12 is: 4,423.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.20 : 11,922.96 = 2,950.12 : x
  2. Step 2: Convert to fraction form
    7,951.20/11,922.96 = 2,950.12/x
  3. Step 3: Cross multiply
    7,951.20x = 11,922.96 × 2,950.12
  4. Step 4: Simplify right side
    7,951.20x = 35,174,162.76
  5. Step 5: Solve for x
    x = 35,174,162.76/7,951.20
  6. Step 6: Final answer
    x = 4,423.76

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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.