Home / 3,738.88-5,157.48-2,991.52

Finding the Fourth Proportional to 3,738.88, 5,157.48 and 2,991.52

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Solution

The fourth proportional to 3,738.88, 5,157.48 and 2,991.52 is: 4,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.88 : 5,157.48 = 2,991.52 : x
  2. Step 2: Convert to fraction form
    3,738.88/5,157.48 = 2,991.52/x
  3. Step 3: Cross multiply
    3,738.88x = 5,157.48 × 2,991.52
  4. Step 4: Simplify right side
    3,738.88x = 15,428,704.57
  5. Step 5: Solve for x
    x = 15,428,704.57/3,738.88
  6. Step 6: Final answer
    x = 4,126.56

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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.