Home / 2,220.79-3,334.22-1,396.61

Finding the Fourth Proportional to 2,220.79, 3,334.22 and 1,396.61

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Solution

The fourth proportional to 2,220.79, 3,334.22 and 1,396.61 is: 2,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.79 : 3,334.22 = 1,396.61 : x
  2. Step 2: Convert to fraction form
    2,220.79/3,334.22 = 1,396.61/x
  3. Step 3: Cross multiply
    2,220.79x = 3,334.22 × 1,396.61
  4. Step 4: Simplify right side
    2,220.79x = 4,656,604.99
  5. Step 5: Solve for x
    x = 4,656,604.99/2,220.79
  6. Step 6: Final answer
    x = 2,096.82

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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.