Home / 5,104.05-7,657.30-2,140.87

Finding the Fourth Proportional to 5,104.05, 7,657.30 and 2,140.87

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Solution

The fourth proportional to 5,104.05, 7,657.30 and 2,140.87 is: 3,211.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.05 : 7,657.30 = 2,140.87 : x
  2. Step 2: Convert to fraction form
    5,104.05/7,657.30 = 2,140.87/x
  3. Step 3: Cross multiply
    5,104.05x = 7,657.30 × 2,140.87
  4. Step 4: Simplify right side
    5,104.05x = 16,393,245.56
  5. Step 5: Solve for x
    x = 16,393,245.56/5,104.05
  6. Step 6: Final answer
    x = 3,211.81

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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.