Home / 3,640.60-5,462.70-2,081.80

Finding the Fourth Proportional to 3,640.60, 5,462.70 and 2,081.80

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Solution

The fourth proportional to 3,640.60, 5,462.70 and 2,081.80 is: 3,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.60 : 5,462.70 = 2,081.80 : x
  2. Step 2: Convert to fraction form
    3,640.60/5,462.70 = 2,081.80/x
  3. Step 3: Cross multiply
    3,640.60x = 5,462.70 × 2,081.80
  4. Step 4: Simplify right side
    3,640.60x = 11,372,248.86
  5. Step 5: Solve for x
    x = 11,372,248.86/3,640.60
  6. Step 6: Final answer
    x = 3,123.73

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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.