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Finding the Fourth Proportional to 695.94, 960.38 and 401.27

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Solution

The fourth proportional to 695.94, 960.38 and 401.27 is: 553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.94 : 960.38 = 401.27 : x
  2. Step 2: Convert to fraction form
    695.94/960.38 = 401.27/x
  3. Step 3: Cross multiply
    695.94x = 960.38 × 401.27
  4. Step 4: Simplify right side
    695.94x = 385,364.87
  5. Step 5: Solve for x
    x = 385,364.87/695.94
  6. Step 6: Final answer
    x = 553.73

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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.