Home / 3,958.38-5,462.43-2,190.06

Finding the Fourth Proportional to 3,958.38, 5,462.43 and 2,190.06

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Solution

The fourth proportional to 3,958.38, 5,462.43 and 2,190.06 is: 3,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.38 : 5,462.43 = 2,190.06 : x
  2. Step 2: Convert to fraction form
    3,958.38/5,462.43 = 2,190.06/x
  3. Step 3: Cross multiply
    3,958.38x = 5,462.43 × 2,190.06
  4. Step 4: Simplify right side
    3,958.38x = 11,963,049.45
  5. Step 5: Solve for x
    x = 11,963,049.45/3,958.38
  6. Step 6: Final answer
    x = 3,022.21

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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.