Home / 2,212.12-3,046.08-2,003.80

Finding the Fourth Proportional to 2,212.12, 3,046.08 and 2,003.80

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Solution

The fourth proportional to 2,212.12, 3,046.08 and 2,003.80 is: 2,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.12 : 3,046.08 = 2,003.80 : x
  2. Step 2: Convert to fraction form
    2,212.12/3,046.08 = 2,003.80/x
  3. Step 3: Cross multiply
    2,212.12x = 3,046.08 × 2,003.80
  4. Step 4: Simplify right side
    2,212.12x = 6,103,735.10
  5. Step 5: Solve for x
    x = 6,103,735.10/2,212.12
  6. Step 6: Final answer
    x = 2,759.22

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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.