Home / 6,691.20-10,029.60-2,529.60

Finding the Fourth Proportional to 6,691.20, 10,029.60 and 2,529.60

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Solution

The fourth proportional to 6,691.20, 10,029.60 and 2,529.60 is: 3,791.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.20 : 10,029.60 = 2,529.60 : x
  2. Step 2: Convert to fraction form
    6,691.20/10,029.60 = 2,529.60/x
  3. Step 3: Cross multiply
    6,691.20x = 10,029.60 × 2,529.60
  4. Step 4: Simplify right side
    6,691.20x = 25,370,876.16
  5. Step 5: Solve for x
    x = 25,370,876.16/6,691.20
  6. Step 6: Final answer
    x = 3,791.68

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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.