Home / 3,489.27-5,231.37-1,639.44

Finding the Fourth Proportional to 3,489.27, 5,231.37 and 1,639.44

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Solution

The fourth proportional to 3,489.27, 5,231.37 and 1,639.44 is: 2,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.27 : 5,231.37 = 1,639.44 : x
  2. Step 2: Convert to fraction form
    3,489.27/5,231.37 = 1,639.44/x
  3. Step 3: Cross multiply
    3,489.27x = 5,231.37 × 1,639.44
  4. Step 4: Simplify right side
    3,489.27x = 8,576,517.23
  5. Step 5: Solve for x
    x = 8,576,517.23/3,489.27
  6. Step 6: Final answer
    x = 2,457.97

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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.