Home / 7,761.39-11,634.56-3,079.86

Finding the Fourth Proportional to 7,761.39, 11,634.56 and 3,079.86

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Solution

The fourth proportional to 7,761.39, 11,634.56 and 3,079.86 is: 4,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.39 : 11,634.56 = 3,079.86 : x
  2. Step 2: Convert to fraction form
    7,761.39/11,634.56 = 3,079.86/x
  3. Step 3: Cross multiply
    7,761.39x = 11,634.56 × 3,079.86
  4. Step 4: Simplify right side
    7,761.39x = 35,832,815.96
  5. Step 5: Solve for x
    x = 35,832,815.96/7,761.39
  6. Step 6: Final answer
    x = 4,616.80

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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.