Home / 3,186.54-4,397.31-1,789.26

Finding the Fourth Proportional to 3,186.54, 4,397.31 and 1,789.26

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Solution

The fourth proportional to 3,186.54, 4,397.31 and 1,789.26 is: 2,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.54 : 4,397.31 = 1,789.26 : x
  2. Step 2: Convert to fraction form
    3,186.54/4,397.31 = 1,789.26/x
  3. Step 3: Cross multiply
    3,186.54x = 4,397.31 × 1,789.26
  4. Step 4: Simplify right side
    3,186.54x = 7,867,930.89
  5. Step 5: Solve for x
    x = 7,867,930.89/3,186.54
  6. Step 6: Final answer
    x = 2,469.11

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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.