Home / 2,515.32-3,788.19-2,243.88

Finding the Fourth Proportional to 2,515.32, 3,788.19 and 2,243.88

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Solution

The fourth proportional to 2,515.32, 3,788.19 and 2,243.88 is: 3,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.32 : 3,788.19 = 2,243.88 : x
  2. Step 2: Convert to fraction form
    2,515.32/3,788.19 = 2,243.88/x
  3. Step 3: Cross multiply
    2,515.32x = 3,788.19 × 2,243.88
  4. Step 4: Simplify right side
    2,515.32x = 8,500,243.78
  5. Step 5: Solve for x
    x = 8,500,243.78/2,515.32
  6. Step 6: Final answer
    x = 3,379.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.