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Finding the Fourth Proportional to 1,830.73, 2,744.41 and 660.45

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Solution

The fourth proportional to 1,830.73, 2,744.41 and 660.45 is: 990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.73 : 2,744.41 = 660.45 : x
  2. Step 2: Convert to fraction form
    1,830.73/2,744.41 = 660.45/x
  3. Step 3: Cross multiply
    1,830.73x = 2,744.41 × 660.45
  4. Step 4: Simplify right side
    1,830.73x = 1,812,553.61
  5. Step 5: Solve for x
    x = 1,812,553.61/1,830.73
  6. Step 6: Final answer
    x = 990.07

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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.