Home / 2,280.76-3,161.94-2,162.19

Finding the Fourth Proportional to 2,280.76, 3,161.94 and 2,162.19

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Solution

The fourth proportional to 2,280.76, 3,161.94 and 2,162.19 is: 2,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.76 : 3,161.94 = 2,162.19 : x
  2. Step 2: Convert to fraction form
    2,280.76/3,161.94 = 2,162.19/x
  3. Step 3: Cross multiply
    2,280.76x = 3,161.94 × 2,162.19
  4. Step 4: Simplify right side
    2,280.76x = 6,836,718.80
  5. Step 5: Solve for x
    x = 6,836,718.80/2,280.76
  6. Step 6: Final answer
    x = 2,997.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.