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Finding the Fourth Proportional to 693.62, 950.92 and 681.36

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Solution

The fourth proportional to 693.62, 950.92 and 681.36 is: 934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.62 : 950.92 = 681.36 : x
  2. Step 2: Convert to fraction form
    693.62/950.92 = 681.36/x
  3. Step 3: Cross multiply
    693.62x = 950.92 × 681.36
  4. Step 4: Simplify right side
    693.62x = 647,918.85
  5. Step 5: Solve for x
    x = 647,918.85/693.62
  6. Step 6: Final answer
    x = 934.11

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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.