Home / 3,321.30-4,975.46-2,161.38

Finding the Fourth Proportional to 3,321.30, 4,975.46 and 2,161.38

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Solution

The fourth proportional to 3,321.30, 4,975.46 and 2,161.38 is: 3,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.30 : 4,975.46 = 2,161.38 : x
  2. Step 2: Convert to fraction form
    3,321.30/4,975.46 = 2,161.38/x
  3. Step 3: Cross multiply
    3,321.30x = 4,975.46 × 2,161.38
  4. Step 4: Simplify right side
    3,321.30x = 10,753,859.73
  5. Step 5: Solve for x
    x = 10,753,859.73/3,321.30
  6. Step 6: Final answer
    x = 3,237.85

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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.