Home / 3,939.38-5,909.13-1,166.33

Finding the Fourth Proportional to 3,939.38, 5,909.13 and 1,166.33

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Solution

The fourth proportional to 3,939.38, 5,909.13 and 1,166.33 is: 1,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.38 : 5,909.13 = 1,166.33 : x
  2. Step 2: Convert to fraction form
    3,939.38/5,909.13 = 1,166.33/x
  3. Step 3: Cross multiply
    3,939.38x = 5,909.13 × 1,166.33
  4. Step 4: Simplify right side
    3,939.38x = 6,891,989.37
  5. Step 5: Solve for x
    x = 6,891,989.37/3,939.38
  6. Step 6: Final answer
    x = 1,749.51

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Similar ratio
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1.5x scale

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.