Home / 3,279.12-4,521.72-2,579.28

Finding the Fourth Proportional to 3,279.12, 4,521.72 and 2,579.28

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Solution

The fourth proportional to 3,279.12, 4,521.72 and 2,579.28 is: 3,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.12 : 4,521.72 = 2,579.28 : x
  2. Step 2: Convert to fraction form
    3,279.12/4,521.72 = 2,579.28/x
  3. Step 3: Cross multiply
    3,279.12x = 4,521.72 × 2,579.28
  4. Step 4: Simplify right side
    3,279.12x = 11,662,781.96
  5. Step 5: Solve for x
    x = 11,662,781.96/3,279.12
  6. Step 6: Final answer
    x = 3,556.68

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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.