Home / 3,279.41-4,917.85-1,087.55

Finding the Fourth Proportional to 3,279.41, 4,917.85 and 1,087.55

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Solution

The fourth proportional to 3,279.41, 4,917.85 and 1,087.55 is: 1,630.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.41 : 4,917.85 = 1,087.55 : x
  2. Step 2: Convert to fraction form
    3,279.41/4,917.85 = 1,087.55/x
  3. Step 3: Cross multiply
    3,279.41x = 4,917.85 × 1,087.55
  4. Step 4: Simplify right side
    3,279.41x = 5,348,417.34
  5. Step 5: Solve for x
    x = 5,348,417.34/3,279.41
  6. Step 6: Final answer
    x = 1,630.91

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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.