Home / 7,721.97-11,583.94-2,099.76

Finding the Fourth Proportional to 7,721.97, 11,583.94 and 2,099.76

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Solution

The fourth proportional to 7,721.97, 11,583.94 and 2,099.76 is: 3,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.97 : 11,583.94 = 2,099.76 : x
  2. Step 2: Convert to fraction form
    7,721.97/11,583.94 = 2,099.76/x
  3. Step 3: Cross multiply
    7,721.97x = 11,583.94 × 2,099.76
  4. Step 4: Simplify right side
    7,721.97x = 24,323,459.65
  5. Step 5: Solve for x
    x = 24,323,459.65/7,721.97
  6. Step 6: Final answer
    x = 3,149.90

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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.