Home / 3,968.10-5,476.08-2,175.68

Finding the Fourth Proportional to 3,968.10, 5,476.08 and 2,175.68

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Solution

The fourth proportional to 3,968.10, 5,476.08 and 2,175.68 is: 3,002.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.10 : 5,476.08 = 2,175.68 : x
  2. Step 2: Convert to fraction form
    3,968.10/5,476.08 = 2,175.68/x
  3. Step 3: Cross multiply
    3,968.10x = 5,476.08 × 2,175.68
  4. Step 4: Simplify right side
    3,968.10x = 11,914,170.35
  5. Step 5: Solve for x
    x = 11,914,170.35/3,968.10
  6. Step 6: Final answer
    x = 3,002.49

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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.