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Finding the Fourth Proportional to 695.74, 954.42 and 653.82

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Solution

The fourth proportional to 695.74, 954.42 and 653.82 is: 896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.74 : 954.42 = 653.82 : x
  2. Step 2: Convert to fraction form
    695.74/954.42 = 653.82/x
  3. Step 3: Cross multiply
    695.74x = 954.42 × 653.82
  4. Step 4: Simplify right side
    695.74x = 624,020.98
  5. Step 5: Solve for x
    x = 624,020.98/695.74
  6. Step 6: Final answer
    x = 896.92

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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.