Home / 5,375.20-7,418.10-3,279.34

Finding the Fourth Proportional to 5,375.20, 7,418.10 and 3,279.34

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Solution

The fourth proportional to 5,375.20, 7,418.10 and 3,279.34 is: 4,525.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.20 : 7,418.10 = 3,279.34 : x
  2. Step 2: Convert to fraction form
    5,375.20/7,418.10 = 3,279.34/x
  3. Step 3: Cross multiply
    5,375.20x = 7,418.10 × 3,279.34
  4. Step 4: Simplify right side
    5,375.20x = 24,326,472.05
  5. Step 5: Solve for x
    x = 24,326,472.05/5,375.20
  6. Step 6: Final answer
    x = 4,525.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.