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Finding the Fourth Proportional to 883.93, 1,217.03 and 673.43

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Solution

The fourth proportional to 883.93, 1,217.03 and 673.43 is: 927.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.93 : 1,217.03 = 673.43 : x
  2. Step 2: Convert to fraction form
    883.93/1,217.03 = 673.43/x
  3. Step 3: Cross multiply
    883.93x = 1,217.03 × 673.43
  4. Step 4: Simplify right side
    883.93x = 819,591.01
  5. Step 5: Solve for x
    x = 819,591.01/883.93
  6. Step 6: Final answer
    x = 927.21

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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.