Home / 5,481.38-8,224.12-3,291.68

Finding the Fourth Proportional to 5,481.38, 8,224.12 and 3,291.68

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Solution

The fourth proportional to 5,481.38, 8,224.12 and 3,291.68 is: 4,938.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.38 : 8,224.12 = 3,291.68 : x
  2. Step 2: Convert to fraction form
    5,481.38/8,224.12 = 3,291.68/x
  3. Step 3: Cross multiply
    5,481.38x = 8,224.12 × 3,291.68
  4. Step 4: Simplify right side
    5,481.38x = 27,071,130.20
  5. Step 5: Solve for x
    x = 27,071,130.20/5,481.38
  6. Step 6: Final answer
    x = 4,938.75

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1.5x scale

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.