Home / 8,409.52-12,610.64-2,861.38

Finding the Fourth Proportional to 8,409.52, 12,610.64 and 2,861.38

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Solution

The fourth proportional to 8,409.52, 12,610.64 and 2,861.38 is: 4,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.52 : 12,610.64 = 2,861.38 : x
  2. Step 2: Convert to fraction form
    8,409.52/12,610.64 = 2,861.38/x
  3. Step 3: Cross multiply
    8,409.52x = 12,610.64 × 2,861.38
  4. Step 4: Simplify right side
    8,409.52x = 36,083,768.97
  5. Step 5: Solve for x
    x = 36,083,768.97/8,409.52
  6. Step 6: Final answer
    x = 4,290.82

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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.