Home / 3,961.00-5,456.64-3,331.54

Finding the Fourth Proportional to 3,961.00, 5,456.64 and 3,331.54

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Solution

The fourth proportional to 3,961.00, 5,456.64 and 3,331.54 is: 4,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.00 : 5,456.64 = 3,331.54 : x
  2. Step 2: Convert to fraction form
    3,961.00/5,456.64 = 3,331.54/x
  3. Step 3: Cross multiply
    3,961.00x = 5,456.64 × 3,331.54
  4. Step 4: Simplify right side
    3,961.00x = 18,178,987.14
  5. Step 5: Solve for x
    x = 18,178,987.14/3,961.00
  6. Step 6: Final answer
    x = 4,589.50

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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.