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Finding the Fourth Proportional to 1,993.14, 2,750.01 and 1,108.73

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Solution

The fourth proportional to 1,993.14, 2,750.01 and 1,108.73 is: 1,529.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.14 : 2,750.01 = 1,108.73 : x
  2. Step 2: Convert to fraction form
    1,993.14/2,750.01 = 1,108.73/x
  3. Step 3: Cross multiply
    1,993.14x = 2,750.01 × 1,108.73
  4. Step 4: Simplify right side
    1,993.14x = 3,049,004.84
  5. Step 5: Solve for x
    x = 3,049,004.84/1,993.14
  6. Step 6: Final answer
    x = 1,529.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.