Home / 3,115.41-4,675.14-2,865.12

Finding the Fourth Proportional to 3,115.41, 4,675.14 and 2,865.12

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Solution

The fourth proportional to 3,115.41, 4,675.14 and 2,865.12 is: 4,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.41 : 4,675.14 = 2,865.12 : x
  2. Step 2: Convert to fraction form
    3,115.41/4,675.14 = 2,865.12/x
  3. Step 3: Cross multiply
    3,115.41x = 4,675.14 × 2,865.12
  4. Step 4: Simplify right side
    3,115.41x = 13,394,837.12
  5. Step 5: Solve for x
    x = 13,394,837.12/3,115.41
  6. Step 6: Final answer
    x = 4,299.54

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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.