Home / 3,488.20-5,232.30-2,105.80

Finding the Fourth Proportional to 3,488.20, 5,232.30 and 2,105.80

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Solution

The fourth proportional to 3,488.20, 5,232.30 and 2,105.80 is: 3,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.20 : 5,232.30 = 2,105.80 : x
  2. Step 2: Convert to fraction form
    3,488.20/5,232.30 = 2,105.80/x
  3. Step 3: Cross multiply
    3,488.20x = 5,232.30 × 2,105.80
  4. Step 4: Simplify right side
    3,488.20x = 11,018,177.34
  5. Step 5: Solve for x
    x = 11,018,177.34/3,488.20
  6. Step 6: Final answer
    x = 3,158.70

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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.