Home / 7,679.25-11,518.89-2,132.61

Finding the Fourth Proportional to 7,679.25, 11,518.89 and 2,132.61

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Solution

The fourth proportional to 7,679.25, 11,518.89 and 2,132.61 is: 3,198.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.25 : 11,518.89 = 2,132.61 : x
  2. Step 2: Convert to fraction form
    7,679.25/11,518.89 = 2,132.61/x
  3. Step 3: Cross multiply
    7,679.25x = 11,518.89 × 2,132.61
  4. Step 4: Simplify right side
    7,679.25x = 24,565,300.00
  5. Step 5: Solve for x
    x = 24,565,300.00/7,679.25
  6. Step 6: Final answer
    x = 3,198.92

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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.