Home / 5,540.12-8,311.75-2,255.57

Finding the Fourth Proportional to 5,540.12, 8,311.75 and 2,255.57

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Solution

The fourth proportional to 5,540.12, 8,311.75 and 2,255.57 is: 3,384.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.12 : 8,311.75 = 2,255.57 : x
  2. Step 2: Convert to fraction form
    5,540.12/8,311.75 = 2,255.57/x
  3. Step 3: Cross multiply
    5,540.12x = 8,311.75 × 2,255.57
  4. Step 4: Simplify right side
    5,540.12x = 18,747,749.09
  5. Step 5: Solve for x
    x = 18,747,749.09/5,540.12
  6. Step 6: Final answer
    x = 3,384.00

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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.