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Finding the Fourth Proportional to 1,977.01, 2,728.03 and 1,092.82

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Solution

The fourth proportional to 1,977.01, 2,728.03 and 1,092.82 is: 1,507.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.01 : 2,728.03 = 1,092.82 : x
  2. Step 2: Convert to fraction form
    1,977.01/2,728.03 = 1,092.82/x
  3. Step 3: Cross multiply
    1,977.01x = 2,728.03 × 1,092.82
  4. Step 4: Simplify right side
    1,977.01x = 2,981,245.74
  5. Step 5: Solve for x
    x = 2,981,245.74/1,977.01
  6. Step 6: Final answer
    x = 1,507.96

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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.