Home / 1,896.92-2,845.64-727.64

Finding the Fourth Proportional to 1,896.92, 2,845.64 and 727.64

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Solution

The fourth proportional to 1,896.92, 2,845.64 and 727.64 is: 1,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.92 : 2,845.64 = 727.64 : x
  2. Step 2: Convert to fraction form
    1,896.92/2,845.64 = 727.64/x
  3. Step 3: Cross multiply
    1,896.92x = 2,845.64 × 727.64
  4. Step 4: Simplify right side
    1,896.92x = 2,070,601.49
  5. Step 5: Solve for x
    x = 2,070,601.49/1,896.92
  6. Step 6: Final answer
    x = 1,091.56

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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.