Home / 7,922.94-11,884.98-2,991.66

Finding the Fourth Proportional to 7,922.94, 11,884.98 and 2,991.66

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Solution

The fourth proportional to 7,922.94, 11,884.98 and 2,991.66 is: 4,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.94 : 11,884.98 = 2,991.66 : x
  2. Step 2: Convert to fraction form
    7,922.94/11,884.98 = 2,991.66/x
  3. Step 3: Cross multiply
    7,922.94x = 11,884.98 × 2,991.66
  4. Step 4: Simplify right side
    7,922.94x = 35,555,819.27
  5. Step 5: Solve for x
    x = 35,555,819.27/7,922.94
  6. Step 6: Final answer
    x = 4,487.71

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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.