Home / 3,115.11-4,672.57-1,265.75

Finding the Fourth Proportional to 3,115.11, 4,672.57 and 1,265.75

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Solution

The fourth proportional to 3,115.11, 4,672.57 and 1,265.75 is: 1,898.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.11 : 4,672.57 = 1,265.75 : x
  2. Step 2: Convert to fraction form
    3,115.11/4,672.57 = 1,265.75/x
  3. Step 3: Cross multiply
    3,115.11x = 4,672.57 × 1,265.75
  4. Step 4: Simplify right side
    3,115.11x = 5,914,305.48
  5. Step 5: Solve for x
    x = 5,914,305.48/3,115.11
  6. Step 6: Final answer
    x = 1,898.59

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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.