Home / 3,489.27-4,815.12-1,997.29

Finding the Fourth Proportional to 3,489.27, 4,815.12 and 1,997.29

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Solution

The fourth proportional to 3,489.27, 4,815.12 and 1,997.29 is: 2,756.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.27 : 4,815.12 = 1,997.29 : x
  2. Step 2: Convert to fraction form
    3,489.27/4,815.12 = 1,997.29/x
  3. Step 3: Cross multiply
    3,489.27x = 4,815.12 × 1,997.29
  4. Step 4: Simplify right side
    3,489.27x = 9,617,191.02
  5. Step 5: Solve for x
    x = 9,617,191.02/3,489.27
  6. Step 6: Final answer
    x = 2,756.22

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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.