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Finding the Fourth Proportional to 2,192.92, 3,288.08 and 731.68

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Solution

The fourth proportional to 2,192.92, 3,288.08 and 731.68 is: 1,097.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.92 : 3,288.08 = 731.68 : x
  2. Step 2: Convert to fraction form
    2,192.92/3,288.08 = 731.68/x
  3. Step 3: Cross multiply
    2,192.92x = 3,288.08 × 731.68
  4. Step 4: Simplify right side
    2,192.92x = 2,405,822.37
  5. Step 5: Solve for x
    x = 2,405,822.37/2,192.92
  6. Step 6: Final answer
    x = 1,097.09

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1.5x scale

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.