Home / 3,738.88-5,157.97-2,166.13

Finding the Fourth Proportional to 3,738.88, 5,157.97 and 2,166.13

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Solution

The fourth proportional to 3,738.88, 5,157.97 and 2,166.13 is: 2,988.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.88 : 5,157.97 = 2,166.13 : x
  2. Step 2: Convert to fraction form
    3,738.88/5,157.97 = 2,166.13/x
  3. Step 3: Cross multiply
    3,738.88x = 5,157.97 × 2,166.13
  4. Step 4: Simplify right side
    3,738.88x = 11,172,833.56
  5. Step 5: Solve for x
    x = 11,172,833.56/3,738.88
  6. Step 6: Final answer
    x = 2,988.28

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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.