Home / 3,279.28-4,522.44-2,159.86

Finding the Fourth Proportional to 3,279.28, 4,522.44 and 2,159.86

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Solution

The fourth proportional to 3,279.28, 4,522.44 and 2,159.86 is: 2,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.28 : 4,522.44 = 2,159.86 : x
  2. Step 2: Convert to fraction form
    3,279.28/4,522.44 = 2,159.86/x
  3. Step 3: Cross multiply
    3,279.28x = 4,522.44 × 2,159.86
  4. Step 4: Simplify right side
    3,279.28x = 9,767,837.26
  5. Step 5: Solve for x
    x = 9,767,837.26/3,279.28
  6. Step 6: Final answer
    x = 2,978.65

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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.