Home / 7,747.86-11,620.46-2,199.90

Finding the Fourth Proportional to 7,747.86, 11,620.46 and 2,199.90

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Solution

The fourth proportional to 7,747.86, 11,620.46 and 2,199.90 is: 3,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.86 : 11,620.46 = 2,199.90 : x
  2. Step 2: Convert to fraction form
    7,747.86/11,620.46 = 2,199.90/x
  3. Step 3: Cross multiply
    7,747.86x = 11,620.46 × 2,199.90
  4. Step 4: Simplify right side
    7,747.86x = 25,563,849.95
  5. Step 5: Solve for x
    x = 25,563,849.95/7,747.86
  6. Step 6: Final answer
    x = 3,299.47

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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.