Home / 5,414.24-8,121.48-1,518.56

Finding the Fourth Proportional to 5,414.24, 8,121.48 and 1,518.56

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Solution

The fourth proportional to 5,414.24, 8,121.48 and 1,518.56 is: 2,277.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.24 : 8,121.48 = 1,518.56 : x
  2. Step 2: Convert to fraction form
    5,414.24/8,121.48 = 1,518.56/x
  3. Step 3: Cross multiply
    5,414.24x = 8,121.48 × 1,518.56
  4. Step 4: Simplify right side
    5,414.24x = 12,332,954.67
  5. Step 5: Solve for x
    x = 12,332,954.67/5,414.24
  6. Step 6: Final answer
    x = 2,277.87

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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.