Home / 1,008.27-1,391.41-566.21

Finding the Fourth Proportional to 1,008.27, 1,391.41 and 566.21

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Solution

The fourth proportional to 1,008.27, 1,391.41 and 566.21 is: 781.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008.27 : 1,391.41 = 566.21 : x
  2. Step 2: Convert to fraction form
    1,008.27/1,391.41 = 566.21/x
  3. Step 3: Cross multiply
    1,008.27x = 1,391.41 × 566.21
  4. Step 4: Simplify right side
    1,008.27x = 787,834.44
  5. Step 5: Solve for x
    x = 787,834.44/1,008.27
  6. Step 6: Final answer
    x = 781.37

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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.