Home / 7,747.61-11,620.07-2,199.66

Finding the Fourth Proportional to 7,747.61, 11,620.07 and 2,199.66

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Solution

The fourth proportional to 7,747.61, 11,620.07 and 2,199.66 is: 3,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.61 : 11,620.07 = 2,199.66 : x
  2. Step 2: Convert to fraction form
    7,747.61/11,620.07 = 2,199.66/x
  3. Step 3: Cross multiply
    7,747.61x = 11,620.07 × 2,199.66
  4. Step 4: Simplify right side
    7,747.61x = 25,560,156.85
  5. Step 5: Solve for x
    x = 25,560,156.85/7,747.61
  6. Step 6: Final answer
    x = 3,299.10

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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.