Home / 3,778.26-5,213.19-2,205.64

Finding the Fourth Proportional to 3,778.26, 5,213.19 and 2,205.64

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Solution

The fourth proportional to 3,778.26, 5,213.19 and 2,205.64 is: 3,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.26 : 5,213.19 = 2,205.64 : x
  2. Step 2: Convert to fraction form
    3,778.26/5,213.19 = 2,205.64/x
  3. Step 3: Cross multiply
    3,778.26x = 5,213.19 × 2,205.64
  4. Step 4: Simplify right side
    3,778.26x = 11,498,420.39
  5. Step 5: Solve for x
    x = 11,498,420.39/3,778.26
  6. Step 6: Final answer
    x = 3,043.31

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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.