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Finding the Fourth Proportional to 966.17, 1,334.40 and 650.88

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Solution

The fourth proportional to 966.17, 1,334.40 and 650.88 is: 898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.17 : 1,334.40 = 650.88 : x
  2. Step 2: Convert to fraction form
    966.17/1,334.40 = 650.88/x
  3. Step 3: Cross multiply
    966.17x = 1,334.40 × 650.88
  4. Step 4: Simplify right side
    966.17x = 868,534.27
  5. Step 5: Solve for x
    x = 868,534.27/966.17
  6. Step 6: Final answer
    x = 898.95

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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.