Home / 5,540.17-7,646.80-4,279.30

Finding the Fourth Proportional to 5,540.17, 7,646.80 and 4,279.30

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Solution

The fourth proportional to 5,540.17, 7,646.80 and 4,279.30 is: 5,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.17 : 7,646.80 = 4,279.30 : x
  2. Step 2: Convert to fraction form
    5,540.17/7,646.80 = 4,279.30/x
  3. Step 3: Cross multiply
    5,540.17x = 7,646.80 × 4,279.30
  4. Step 4: Simplify right side
    5,540.17x = 32,722,951.24
  5. Step 5: Solve for x
    x = 32,722,951.24/5,540.17
  6. Step 6: Final answer
    x = 5,906.49

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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.