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Finding the Fourth Proportional to 1,202.28, 1,658.97 and 704.73

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Solution

The fourth proportional to 1,202.28, 1,658.97 and 704.73 is: 972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.28 : 1,658.97 = 704.73 : x
  2. Step 2: Convert to fraction form
    1,202.28/1,658.97 = 704.73/x
  3. Step 3: Cross multiply
    1,202.28x = 1,658.97 × 704.73
  4. Step 4: Simplify right side
    1,202.28x = 1,169,125.93
  5. Step 5: Solve for x
    x = 1,169,125.93/1,202.28
  6. Step 6: Final answer
    x = 972.42

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1.5x scale

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.