Home / 5,278.76-7,912.92-2,500.55

Finding the Fourth Proportional to 5,278.76, 7,912.92 and 2,500.55

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Solution

The fourth proportional to 5,278.76, 7,912.92 and 2,500.55 is: 3,748.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.76 : 7,912.92 = 2,500.55 : x
  2. Step 2: Convert to fraction form
    5,278.76/7,912.92 = 2,500.55/x
  3. Step 3: Cross multiply
    5,278.76x = 7,912.92 × 2,500.55
  4. Step 4: Simplify right side
    5,278.76x = 19,786,652.11
  5. Step 5: Solve for x
    x = 19,786,652.11/5,278.76
  6. Step 6: Final answer
    x = 3,748.35

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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.