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Finding the Fourth Proportional to 2,982.22, 4,480.63 and 2,816.44

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Solution

The fourth proportional to 2,982.22, 4,480.63 and 2,816.44 is: 4,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.22 : 4,480.63 = 2,816.44 : x
  2. Step 2: Convert to fraction form
    2,982.22/4,480.63 = 2,816.44/x
  3. Step 3: Cross multiply
    2,982.22x = 4,480.63 × 2,816.44
  4. Step 4: Simplify right side
    2,982.22x = 12,619,425.56
  5. Step 5: Solve for x
    x = 12,619,425.56/2,982.22
  6. Step 6: Final answer
    x = 4,231.55

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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.