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Finding the Fourth Proportional to 695.44, 960.15 and 571.44

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Solution

The fourth proportional to 695.44, 960.15 and 571.44 is: 788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.44 : 960.15 = 571.44 : x
  2. Step 2: Convert to fraction form
    695.44/960.15 = 571.44/x
  3. Step 3: Cross multiply
    695.44x = 960.15 × 571.44
  4. Step 4: Simplify right side
    695.44x = 548,668.12
  5. Step 5: Solve for x
    x = 548,668.12/695.44
  6. Step 6: Final answer
    x = 788.95

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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.