Home / 2,515.20-3,773.13-1,281.96

Finding the Fourth Proportional to 2,515.20, 3,773.13 and 1,281.96

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Solution

The fourth proportional to 2,515.20, 3,773.13 and 1,281.96 is: 1,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.20 : 3,773.13 = 1,281.96 : x
  2. Step 2: Convert to fraction form
    2,515.20/3,773.13 = 1,281.96/x
  3. Step 3: Cross multiply
    2,515.20x = 3,773.13 × 1,281.96
  4. Step 4: Simplify right side
    2,515.20x = 4,837,001.73
  5. Step 5: Solve for x
    x = 4,837,001.73/2,515.20
  6. Step 6: Final answer
    x = 1,923.11

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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.