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Finding the Fourth Proportional to 695.87, 954.21 and 672.59

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Solution

The fourth proportional to 695.87, 954.21 and 672.59 is: 922.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.87 : 954.21 = 672.59 : x
  2. Step 2: Convert to fraction form
    695.87/954.21 = 672.59/x
  3. Step 3: Cross multiply
    695.87x = 954.21 × 672.59
  4. Step 4: Simplify right side
    695.87x = 641,787.33
  5. Step 5: Solve for x
    x = 641,787.33/695.87
  6. Step 6: Final answer
    x = 922.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.