Home / 3,186.44-4,397.32-1,789.19

Finding the Fourth Proportional to 3,186.44, 4,397.32 and 1,789.19

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Solution

The fourth proportional to 3,186.44, 4,397.32 and 1,789.19 is: 2,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.44 : 4,397.32 = 1,789.19 : x
  2. Step 2: Convert to fraction form
    3,186.44/4,397.32 = 1,789.19/x
  3. Step 3: Cross multiply
    3,186.44x = 4,397.32 × 1,789.19
  4. Step 4: Simplify right side
    3,186.44x = 7,867,640.97
  5. Step 5: Solve for x
    x = 7,867,640.97/3,186.44
  6. Step 6: Final answer
    x = 2,469.10

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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.