Home / 4,189.20-5,781.45-2,696.19

Finding the Fourth Proportional to 4,189.20, 5,781.45 and 2,696.19

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Solution

The fourth proportional to 4,189.20, 5,781.45 and 2,696.19 is: 3,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.20 : 5,781.45 = 2,696.19 : x
  2. Step 2: Convert to fraction form
    4,189.20/5,781.45 = 2,696.19/x
  3. Step 3: Cross multiply
    4,189.20x = 5,781.45 × 2,696.19
  4. Step 4: Simplify right side
    4,189.20x = 15,587,887.68
  5. Step 5: Solve for x
    x = 15,587,887.68/4,189.20
  6. Step 6: Final answer
    x = 3,720.97

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Half scale
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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.