Home / 3,958.98-5,463.51-2,190.78

Finding the Fourth Proportional to 3,958.98, 5,463.51 and 2,190.78

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Solution

The fourth proportional to 3,958.98, 5,463.51 and 2,190.78 is: 3,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.98 : 5,463.51 = 2,190.78 : x
  2. Step 2: Convert to fraction form
    3,958.98/5,463.51 = 2,190.78/x
  3. Step 3: Cross multiply
    3,958.98x = 5,463.51 × 2,190.78
  4. Step 4: Simplify right side
    3,958.98x = 11,969,348.44
  5. Step 5: Solve for x
    x = 11,969,348.44/3,958.98
  6. Step 6: Final answer
    x = 3,023.34

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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.