Home / 1,008.24-1,391.38-566.12

Finding the Fourth Proportional to 1,008.24, 1,391.38 and 566.12

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Solution

The fourth proportional to 1,008.24, 1,391.38 and 566.12 is: 781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008.24 : 1,391.38 = 566.12 : x
  2. Step 2: Convert to fraction form
    1,008.24/1,391.38 = 566.12/x
  3. Step 3: Cross multiply
    1,008.24x = 1,391.38 × 566.12
  4. Step 4: Simplify right side
    1,008.24x = 787,688.05
  5. Step 5: Solve for x
    x = 787,688.05/1,008.24
  6. Step 6: Final answer
    x = 781.25

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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.