Home / 5,519.18-8,279.60-2,231.55

Finding the Fourth Proportional to 5,519.18, 8,279.60 and 2,231.55

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Solution

The fourth proportional to 5,519.18, 8,279.60 and 2,231.55 is: 3,347.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.18 : 8,279.60 = 2,231.55 : x
  2. Step 2: Convert to fraction form
    5,519.18/8,279.60 = 2,231.55/x
  3. Step 3: Cross multiply
    5,519.18x = 8,279.60 × 2,231.55
  4. Step 4: Simplify right side
    5,519.18x = 18,476,330.22
  5. Step 5: Solve for x
    x = 18,476,330.22/5,519.18
  6. Step 6: Final answer
    x = 3,347.66

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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.