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Finding the Fourth Proportional to 2,192.56, 3,288.86 and 805.92

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Solution

The fourth proportional to 2,192.56, 3,288.86 and 805.92 is: 1,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.56 : 3,288.86 = 805.92 : x
  2. Step 2: Convert to fraction form
    2,192.56/3,288.86 = 805.92/x
  3. Step 3: Cross multiply
    2,192.56x = 3,288.86 × 805.92
  4. Step 4: Simplify right side
    2,192.56x = 2,650,558.05
  5. Step 5: Solve for x
    x = 2,650,558.05/2,192.56
  6. Step 6: Final answer
    x = 1,208.89

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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.