Home / 3,540.83-5,311.88-1,459.68

Finding the Fourth Proportional to 3,540.83, 5,311.88 and 1,459.68

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Solution

The fourth proportional to 3,540.83, 5,311.88 and 1,459.68 is: 2,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.83 : 5,311.88 = 1,459.68 : x
  2. Step 2: Convert to fraction form
    3,540.83/5,311.88 = 1,459.68/x
  3. Step 3: Cross multiply
    3,540.83x = 5,311.88 × 1,459.68
  4. Step 4: Simplify right side
    3,540.83x = 7,753,648.65
  5. Step 5: Solve for x
    x = 7,753,648.65/3,540.83
  6. Step 6: Final answer
    x = 2,189.78

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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.