Home / 3,186.38-4,397.10-1,789.14

Finding the Fourth Proportional to 3,186.38, 4,397.10 and 1,789.14

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Solution

The fourth proportional to 3,186.38, 4,397.10 and 1,789.14 is: 2,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.38 : 4,397.10 = 1,789.14 : x
  2. Step 2: Convert to fraction form
    3,186.38/4,397.10 = 1,789.14/x
  3. Step 3: Cross multiply
    3,186.38x = 4,397.10 × 1,789.14
  4. Step 4: Simplify right side
    3,186.38x = 7,867,027.49
  5. Step 5: Solve for x
    x = 7,867,027.49/3,186.38
  6. Step 6: Final answer
    x = 2,468.95

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1.5x scale

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.