Home / 2,772.25-4,161.22-2,162.62

Finding the Fourth Proportional to 2,772.25, 4,161.22 and 2,162.62

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Solution

The fourth proportional to 2,772.25, 4,161.22 and 2,162.62 is: 3,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.25 : 4,161.22 = 2,162.62 : x
  2. Step 2: Convert to fraction form
    2,772.25/4,161.22 = 2,162.62/x
  3. Step 3: Cross multiply
    2,772.25x = 4,161.22 × 2,162.62
  4. Step 4: Simplify right side
    2,772.25x = 8,999,137.60
  5. Step 5: Solve for x
    x = 8,999,137.60/2,772.25
  6. Step 6: Final answer
    x = 3,246.15

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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.