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Finding the Fourth Proportional to 963.19, 1,442.25 and 883

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Solution

The fourth proportional to 963.19, 1,442.25 and 883 is: 1,322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.19 : 1,442.25 = 883 : x
  2. Step 2: Convert to fraction form
    963.19/1,442.25 = 883/x
  3. Step 3: Cross multiply
    963.19x = 1,442.25 × 883
  4. Step 4: Simplify right side
    963.19x = 1,273,506.75
  5. Step 5: Solve for x
    x = 1,273,506.75/963.19
  6. Step 6: Final answer
    x = 1,322.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.