Home / 3,754.90-5,180.73-2,161.48

Finding the Fourth Proportional to 3,754.90, 5,180.73 and 2,161.48

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Solution

The fourth proportional to 3,754.90, 5,180.73 and 2,161.48 is: 2,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.90 : 5,180.73 = 2,161.48 : x
  2. Step 2: Convert to fraction form
    3,754.90/5,180.73 = 2,161.48/x
  3. Step 3: Cross multiply
    3,754.90x = 5,180.73 × 2,161.48
  4. Step 4: Simplify right side
    3,754.90x = 11,198,044.28
  5. Step 5: Solve for x
    x = 11,198,044.28/3,754.90
  6. Step 6: Final answer
    x = 2,982.25

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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.