Home / 5,540.75-8,311.49-2,078.09

Finding the Fourth Proportional to 5,540.75, 8,311.49 and 2,078.09

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Solution

The fourth proportional to 5,540.75, 8,311.49 and 2,078.09 is: 3,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.75 : 8,311.49 = 2,078.09 : x
  2. Step 2: Convert to fraction form
    5,540.75/8,311.49 = 2,078.09/x
  3. Step 3: Cross multiply
    5,540.75x = 8,311.49 × 2,078.09
  4. Step 4: Simplify right side
    5,540.75x = 17,272,024.25
  5. Step 5: Solve for x
    x = 17,272,024.25/5,540.75
  6. Step 6: Final answer
    x = 3,117.27

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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.