Home / 3,781.26-5,217.32-2,208.64

Finding the Fourth Proportional to 3,781.26, 5,217.32 and 2,208.64

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Solution

The fourth proportional to 3,781.26, 5,217.32 and 2,208.64 is: 3,047.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.26 : 5,217.32 = 2,208.64 : x
  2. Step 2: Convert to fraction form
    3,781.26/5,217.32 = 2,208.64/x
  3. Step 3: Cross multiply
    3,781.26x = 5,217.32 × 2,208.64
  4. Step 4: Simplify right side
    3,781.26x = 11,523,181.64
  5. Step 5: Solve for x
    x = 11,523,181.64/3,781.26
  6. Step 6: Final answer
    x = 3,047.44

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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.