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Finding the Fourth Proportional to 966.33, 1,333.02 and 745.20

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Solution

The fourth proportional to 966.33, 1,333.02 and 745.20 is: 1,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.33 : 1,333.02 = 745.20 : x
  2. Step 2: Convert to fraction form
    966.33/1,333.02 = 745.20/x
  3. Step 3: Cross multiply
    966.33x = 1,333.02 × 745.20
  4. Step 4: Simplify right side
    966.33x = 993,366.50
  5. Step 5: Solve for x
    x = 993,366.50/966.33
  6. Step 6: Final answer
    x = 1,027.98

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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.