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Finding the Fourth Proportional to 1,773.73, 2,660.32 and 993.25

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Solution

The fourth proportional to 1,773.73, 2,660.32 and 993.25 is: 1,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773.73 : 2,660.32 = 993.25 : x
  2. Step 2: Convert to fraction form
    1,773.73/2,660.32 = 993.25/x
  3. Step 3: Cross multiply
    1,773.73x = 2,660.32 × 993.25
  4. Step 4: Simplify right side
    1,773.73x = 2,642,362.84
  5. Step 5: Solve for x
    x = 2,642,362.84/1,773.73
  6. Step 6: Final answer
    x = 1,489.72

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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.