Home / 7,680.24-11,519.10-2,748.96

Finding the Fourth Proportional to 7,680.24, 11,519.10 and 2,748.96

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Solution

The fourth proportional to 7,680.24, 11,519.10 and 2,748.96 is: 4,122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.24 : 11,519.10 = 2,748.96 : x
  2. Step 2: Convert to fraction form
    7,680.24/11,519.10 = 2,748.96/x
  3. Step 3: Cross multiply
    7,680.24x = 11,519.10 × 2,748.96
  4. Step 4: Simplify right side
    7,680.24x = 31,665,545.14
  5. Step 5: Solve for x
    x = 31,665,545.14/7,680.24
  6. Step 6: Final answer
    x = 4,122.99

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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.