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Finding the Fourth Proportional to 1,082.73, 1,624.08 and 889.95

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Solution

The fourth proportional to 1,082.73, 1,624.08 and 889.95 is: 1,334.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.73 : 1,624.08 = 889.95 : x
  2. Step 2: Convert to fraction form
    1,082.73/1,624.08 = 889.95/x
  3. Step 3: Cross multiply
    1,082.73x = 1,624.08 × 889.95
  4. Step 4: Simplify right side
    1,082.73x = 1,445,350.00
  5. Step 5: Solve for x
    x = 1,445,350.00/1,082.73
  6. Step 6: Final answer
    x = 1,334.91

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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.