Home / 3,958.60-5,462.79-2,190.28

Finding the Fourth Proportional to 3,958.60, 5,462.79 and 2,190.28

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Solution

The fourth proportional to 3,958.60, 5,462.79 and 2,190.28 is: 3,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.60 : 5,462.79 = 2,190.28 : x
  2. Step 2: Convert to fraction form
    3,958.60/5,462.79 = 2,190.28/x
  3. Step 3: Cross multiply
    3,958.60x = 5,462.79 × 2,190.28
  4. Step 4: Simplify right side
    3,958.60x = 11,965,039.68
  5. Step 5: Solve for x
    x = 11,965,039.68/3,958.60
  6. Step 6: Final answer
    x = 3,022.54

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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.