Home / 1,908.72-2,862.92-1,296.36

Finding the Fourth Proportional to 1,908.72, 2,862.92 and 1,296.36

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Solution

The fourth proportional to 1,908.72, 2,862.92 and 1,296.36 is: 1,944.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.72 : 2,862.92 = 1,296.36 : x
  2. Step 2: Convert to fraction form
    1,908.72/2,862.92 = 1,296.36/x
  3. Step 3: Cross multiply
    1,908.72x = 2,862.92 × 1,296.36
  4. Step 4: Simplify right side
    1,908.72x = 3,711,374.97
  5. Step 5: Solve for x
    x = 3,711,374.97/1,908.72
  6. Step 6: Final answer
    x = 1,944.43

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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.