Home / 3,581.67-5,372.85-1,330.80

Finding the Fourth Proportional to 3,581.67, 5,372.85 and 1,330.80

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Solution

The fourth proportional to 3,581.67, 5,372.85 and 1,330.80 is: 1,996.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.67 : 5,372.85 = 1,330.80 : x
  2. Step 2: Convert to fraction form
    3,581.67/5,372.85 = 1,330.80/x
  3. Step 3: Cross multiply
    3,581.67x = 5,372.85 × 1,330.80
  4. Step 4: Simplify right side
    3,581.67x = 7,150,188.78
  5. Step 5: Solve for x
    x = 7,150,188.78/3,581.67
  6. Step 6: Final answer
    x = 1,996.33

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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.