Home / 3,625.89-5,439.39-1,286.66

Finding the Fourth Proportional to 3,625.89, 5,439.39 and 1,286.66

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Solution

The fourth proportional to 3,625.89, 5,439.39 and 1,286.66 is: 1,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.89 : 5,439.39 = 1,286.66 : x
  2. Step 2: Convert to fraction form
    3,625.89/5,439.39 = 1,286.66/x
  3. Step 3: Cross multiply
    3,625.89x = 5,439.39 × 1,286.66
  4. Step 4: Simplify right side
    3,625.89x = 6,998,631.30
  5. Step 5: Solve for x
    x = 6,998,631.30/3,625.89
  6. Step 6: Final answer
    x = 1,930.18

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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.