Home / 5,245.85-7,868.67-2,125.73

Finding the Fourth Proportional to 5,245.85, 7,868.67 and 2,125.73

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Solution

The fourth proportional to 5,245.85, 7,868.67 and 2,125.73 is: 3,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.85 : 7,868.67 = 2,125.73 : x
  2. Step 2: Convert to fraction form
    5,245.85/7,868.67 = 2,125.73/x
  3. Step 3: Cross multiply
    5,245.85x = 7,868.67 × 2,125.73
  4. Step 4: Simplify right side
    5,245.85x = 16,726,628.54
  5. Step 5: Solve for x
    x = 16,726,628.54/5,245.85
  6. Step 6: Final answer
    x = 3,188.55

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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.