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Finding the Fourth Proportional to 695.63, 960.02 and 385.19

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Solution

The fourth proportional to 695.63, 960.02 and 385.19 is: 531.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.63 : 960.02 = 385.19 : x
  2. Step 2: Convert to fraction form
    695.63/960.02 = 385.19/x
  3. Step 3: Cross multiply
    695.63x = 960.02 × 385.19
  4. Step 4: Simplify right side
    695.63x = 369,786.27
  5. Step 5: Solve for x
    x = 369,786.27/695.63
  6. Step 6: Final answer
    x = 531.59

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Double scale
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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.