Home / 3,385.70-5,081.12-2,729.18

Finding the Fourth Proportional to 3,385.70, 5,081.12 and 2,729.18

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Solution

The fourth proportional to 3,385.70, 5,081.12 and 2,729.18 is: 4,095.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.70 : 5,081.12 = 2,729.18 : x
  2. Step 2: Convert to fraction form
    3,385.70/5,081.12 = 2,729.18/x
  3. Step 3: Cross multiply
    3,385.70x = 5,081.12 × 2,729.18
  4. Step 4: Simplify right side
    3,385.70x = 13,867,291.08
  5. Step 5: Solve for x
    x = 13,867,291.08/3,385.70
  6. Step 6: Final answer
    x = 4,095.84

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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.