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Finding the Fourth Proportional to 1,366.19, 2,049.29 and 488.73

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Solution

The fourth proportional to 1,366.19, 2,049.29 and 488.73 is: 733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366.19 : 2,049.29 = 488.73 : x
  2. Step 2: Convert to fraction form
    1,366.19/2,049.29 = 488.73/x
  3. Step 3: Cross multiply
    1,366.19x = 2,049.29 × 488.73
  4. Step 4: Simplify right side
    1,366.19x = 1,001,549.50
  5. Step 5: Solve for x
    x = 1,001,549.50/1,366.19
  6. Step 6: Final answer
    x = 733.10

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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.