Home / 3,968.26-5,476.26-2,175.90

Finding the Fourth Proportional to 3,968.26, 5,476.26 and 2,175.90

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Solution

The fourth proportional to 3,968.26, 5,476.26 and 2,175.90 is: 3,002.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.26 : 5,476.26 = 2,175.90 : x
  2. Step 2: Convert to fraction form
    3,968.26/5,476.26 = 2,175.90/x
  3. Step 3: Cross multiply
    3,968.26x = 5,476.26 × 2,175.90
  4. Step 4: Simplify right side
    3,968.26x = 11,915,807.82
  5. Step 5: Solve for x
    x = 11,915,807.82/3,968.26
  6. Step 6: Final answer
    x = 3,002.78

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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.