Home / 3,958.82-5,462.80-2,190.38

Finding the Fourth Proportional to 3,958.82, 5,462.80 and 2,190.38

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Solution

The fourth proportional to 3,958.82, 5,462.80 and 2,190.38 is: 3,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.82 : 5,462.80 = 2,190.38 : x
  2. Step 2: Convert to fraction form
    3,958.82/5,462.80 = 2,190.38/x
  3. Step 3: Cross multiply
    3,958.82x = 5,462.80 × 2,190.38
  4. Step 4: Simplify right side
    3,958.82x = 11,965,616.05
  5. Step 5: Solve for x
    x = 11,965,616.05/3,958.82
  6. Step 6: Final answer
    x = 3,022.52

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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.