Home / 2,668.28-4,022.43-2,489.87

Finding the Fourth Proportional to 2,668.28, 4,022.43 and 2,489.87

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Solution

The fourth proportional to 2,668.28, 4,022.43 and 2,489.87 is: 3,753.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.28 : 4,022.43 = 2,489.87 : x
  2. Step 2: Convert to fraction form
    2,668.28/4,022.43 = 2,489.87/x
  3. Step 3: Cross multiply
    2,668.28x = 4,022.43 × 2,489.87
  4. Step 4: Simplify right side
    2,668.28x = 10,015,328.50
  5. Step 5: Solve for x
    x = 10,015,328.50/2,668.28
  6. Step 6: Final answer
    x = 3,753.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.