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Finding the Fourth Proportional to 2,997.44, 4,489.96 and 2,778.72

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Solution

The fourth proportional to 2,997.44, 4,489.96 and 2,778.72 is: 4,162.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.44 : 4,489.96 = 2,778.72 : x
  2. Step 2: Convert to fraction form
    2,997.44/4,489.96 = 2,778.72/x
  3. Step 3: Cross multiply
    2,997.44x = 4,489.96 × 2,778.72
  4. Step 4: Simplify right side
    2,997.44x = 12,476,341.65
  5. Step 5: Solve for x
    x = 12,476,341.65/2,997.44
  6. Step 6: Final answer
    x = 4,162.33

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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.