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Finding the Fourth Proportional to 966.69, 1,334.03 and 573.80

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Solution

The fourth proportional to 966.69, 1,334.03 and 573.80 is: 791.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.69 : 1,334.03 = 573.80 : x
  2. Step 2: Convert to fraction form
    966.69/1,334.03 = 573.80/x
  3. Step 3: Cross multiply
    966.69x = 1,334.03 × 573.80
  4. Step 4: Simplify right side
    966.69x = 765,456.87
  5. Step 5: Solve for x
    x = 765,456.87/966.69
  6. Step 6: Final answer
    x = 791.83

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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.