Home / 3,961.61-5,466.86-2,169.06

Finding the Fourth Proportional to 3,961.61, 5,466.86 and 2,169.06

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Solution

The fourth proportional to 3,961.61, 5,466.86 and 2,169.06 is: 2,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.61 : 5,466.86 = 2,169.06 : x
  2. Step 2: Convert to fraction form
    3,961.61/5,466.86 = 2,169.06/x
  3. Step 3: Cross multiply
    3,961.61x = 5,466.86 × 2,169.06
  4. Step 4: Simplify right side
    3,961.61x = 11,857,932.45
  5. Step 5: Solve for x
    x = 11,857,932.45/3,961.61
  6. Step 6: Final answer
    x = 2,993.21

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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.