Home / 3,958.31-5,462.55-2,190.02

Finding the Fourth Proportional to 3,958.31, 5,462.55 and 2,190.02

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Solution

The fourth proportional to 3,958.31, 5,462.55 and 2,190.02 is: 3,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.31 : 5,462.55 = 2,190.02 : x
  2. Step 2: Convert to fraction form
    3,958.31/5,462.55 = 2,190.02/x
  3. Step 3: Cross multiply
    3,958.31x = 5,462.55 × 2,190.02
  4. Step 4: Simplify right side
    3,958.31x = 11,963,093.75
  5. Step 5: Solve for x
    x = 11,963,093.75/3,958.31
  6. Step 6: Final answer
    x = 3,022.27

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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.