Home / 3,279.60-4,917.54-1,087.11

Finding the Fourth Proportional to 3,279.60, 4,917.54 and 1,087.11

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Solution

The fourth proportional to 3,279.60, 4,917.54 and 1,087.11 is: 1,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.60 : 4,917.54 = 1,087.11 : x
  2. Step 2: Convert to fraction form
    3,279.60/4,917.54 = 1,087.11/x
  3. Step 3: Cross multiply
    3,279.60x = 4,917.54 × 1,087.11
  4. Step 4: Simplify right side
    3,279.60x = 5,345,906.91
  5. Step 5: Solve for x
    x = 5,345,906.91/3,279.60
  6. Step 6: Final answer
    x = 1,630.05

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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.