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Finding the Fourth Proportional to 2,724.82, 4,087.24 and 672.82

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Solution

The fourth proportional to 2,724.82, 4,087.24 and 672.82 is: 1,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724.82 : 4,087.24 = 672.82 : x
  2. Step 2: Convert to fraction form
    2,724.82/4,087.24 = 672.82/x
  3. Step 3: Cross multiply
    2,724.82x = 4,087.24 × 672.82
  4. Step 4: Simplify right side
    2,724.82x = 2,749,976.82
  5. Step 5: Solve for x
    x = 2,749,976.82/2,724.82
  6. Step 6: Final answer
    x = 1,009.23

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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.