Home / 2,982.72-4,481.38-2,816.94

Finding the Fourth Proportional to 2,982.72, 4,481.38 and 2,816.94

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Solution

The fourth proportional to 2,982.72, 4,481.38 and 2,816.94 is: 4,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.72 : 4,481.38 = 2,816.94 : x
  2. Step 2: Convert to fraction form
    2,982.72/4,481.38 = 2,816.94/x
  3. Step 3: Cross multiply
    2,982.72x = 4,481.38 × 2,816.94
  4. Step 4: Simplify right side
    2,982.72x = 12,623,778.58
  5. Step 5: Solve for x
    x = 12,623,778.58/2,982.72
  6. Step 6: Final answer
    x = 4,232.30

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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.