Home / 3,979.26-5,968.89-1,382.20

Finding the Fourth Proportional to 3,979.26, 5,968.89 and 1,382.20

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Solution

The fourth proportional to 3,979.26, 5,968.89 and 1,382.20 is: 2,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.26 : 5,968.89 = 1,382.20 : x
  2. Step 2: Convert to fraction form
    3,979.26/5,968.89 = 1,382.20/x
  3. Step 3: Cross multiply
    3,979.26x = 5,968.89 × 1,382.20
  4. Step 4: Simplify right side
    3,979.26x = 8,250,199.76
  5. Step 5: Solve for x
    x = 8,250,199.76/3,979.26
  6. Step 6: Final answer
    x = 2,073.30

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1.5x scale

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.