Home / 3,452.90-5,175.20-1,989.02

Finding the Fourth Proportional to 3,452.90, 5,175.20 and 1,989.02

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Solution

The fourth proportional to 3,452.90, 5,175.20 and 1,989.02 is: 2,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452.90 : 5,175.20 = 1,989.02 : x
  2. Step 2: Convert to fraction form
    3,452.90/5,175.20 = 1,989.02/x
  3. Step 3: Cross multiply
    3,452.90x = 5,175.20 × 1,989.02
  4. Step 4: Simplify right side
    3,452.90x = 10,293,540.48
  5. Step 5: Solve for x
    x = 10,293,540.48/3,452.90
  6. Step 6: Final answer
    x = 2,981.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.