Home / 3,600-4,966.80-2,183.20

Finding the Fourth Proportional to 3,600, 4,966.80 and 2,183.20

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Solution

The fourth proportional to 3,600, 4,966.80 and 2,183.20 is: 3,012.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600 : 4,966.80 = 2,183.20 : x
  2. Step 2: Convert to fraction form
    3,600/4,966.80 = 2,183.20/x
  3. Step 3: Cross multiply
    3,600x = 4,966.80 × 2,183.20
  4. Step 4: Simplify right side
    3,600x = 10,843,517.76
  5. Step 5: Solve for x
    x = 10,843,517.76/3,600
  6. Step 6: Final answer
    x = 3,012.09

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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.