Home / 3,409.16-5,115.18-2,177.96

Finding the Fourth Proportional to 3,409.16, 5,115.18 and 2,177.96

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Solution

The fourth proportional to 3,409.16, 5,115.18 and 2,177.96 is: 3,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.16 : 5,115.18 = 2,177.96 : x
  2. Step 2: Convert to fraction form
    3,409.16/5,115.18 = 2,177.96/x
  3. Step 3: Cross multiply
    3,409.16x = 5,115.18 × 2,177.96
  4. Step 4: Simplify right side
    3,409.16x = 11,140,657.43
  5. Step 5: Solve for x
    x = 11,140,657.43/3,409.16
  6. Step 6: Final answer
    x = 3,267.86

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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.