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Finding the Fourth Proportional to 866.97, 1,195.39 and 700.66

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Solution

The fourth proportional to 866.97, 1,195.39 and 700.66 is: 966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    866.97 : 1,195.39 = 700.66 : x
  2. Step 2: Convert to fraction form
    866.97/1,195.39 = 700.66/x
  3. Step 3: Cross multiply
    866.97x = 1,195.39 × 700.66
  4. Step 4: Simplify right side
    866.97x = 837,561.96
  5. Step 5: Solve for x
    x = 837,561.96/866.97
  6. Step 6: Final answer
    x = 966.09

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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.