Home / 2,206.20-3,044.46-1,321.80

Finding the Fourth Proportional to 2,206.20, 3,044.46 and 1,321.80

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Solution

The fourth proportional to 2,206.20, 3,044.46 and 1,321.80 is: 1,824.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.20 : 3,044.46 = 1,321.80 : x
  2. Step 2: Convert to fraction form
    2,206.20/3,044.46 = 1,321.80/x
  3. Step 3: Cross multiply
    2,206.20x = 3,044.46 × 1,321.80
  4. Step 4: Simplify right side
    2,206.20x = 4,024,167.23
  5. Step 5: Solve for x
    x = 4,024,167.23/2,206.20
  6. Step 6: Final answer
    x = 1,824.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.