Home / 3,781.26-5,217.38-2,209.05

Finding the Fourth Proportional to 3,781.26, 5,217.38 and 2,209.05

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Solution

The fourth proportional to 3,781.26, 5,217.38 and 2,209.05 is: 3,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.26 : 5,217.38 = 2,209.05 : x
  2. Step 2: Convert to fraction form
    3,781.26/5,217.38 = 2,209.05/x
  3. Step 3: Cross multiply
    3,781.26x = 5,217.38 × 2,209.05
  4. Step 4: Simplify right side
    3,781.26x = 11,525,453.29
  5. Step 5: Solve for x
    x = 11,525,453.29/3,781.26
  6. Step 6: Final answer
    x = 3,048.05

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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.