Home / 3,456.21-5,180.22-2,069.85

Finding the Fourth Proportional to 3,456.21, 5,180.22 and 2,069.85

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Solution

The fourth proportional to 3,456.21, 5,180.22 and 2,069.85 is: 3,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.21 : 5,180.22 = 2,069.85 : x
  2. Step 2: Convert to fraction form
    3,456.21/5,180.22 = 2,069.85/x
  3. Step 3: Cross multiply
    3,456.21x = 5,180.22 × 2,069.85
  4. Step 4: Simplify right side
    3,456.21x = 10,722,278.37
  5. Step 5: Solve for x
    x = 10,722,278.37/3,456.21
  6. Step 6: Final answer
    x = 3,102.32

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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.