Home / 3,979.79-5,961.80-2,727.30

Finding the Fourth Proportional to 3,979.79, 5,961.80 and 2,727.30

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Solution

The fourth proportional to 3,979.79, 5,961.80 and 2,727.30 is: 4,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.79 : 5,961.80 = 2,727.30 : x
  2. Step 2: Convert to fraction form
    3,979.79/5,961.80 = 2,727.30/x
  3. Step 3: Cross multiply
    3,979.79x = 5,961.80 × 2,727.30
  4. Step 4: Simplify right side
    3,979.79x = 16,259,638.64
  5. Step 5: Solve for x
    x = 16,259,638.64/3,979.79
  6. Step 6: Final answer
    x = 4,085.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.