Home / 4,221.73-5,822.89-3,661.22

Finding the Fourth Proportional to 4,221.73, 5,822.89 and 3,661.22

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Solution

The fourth proportional to 4,221.73, 5,822.89 and 3,661.22 is: 5,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.73 : 5,822.89 = 3,661.22 : x
  2. Step 2: Convert to fraction form
    4,221.73/5,822.89 = 3,661.22/x
  3. Step 3: Cross multiply
    4,221.73x = 5,822.89 × 3,661.22
  4. Step 4: Simplify right side
    4,221.73x = 21,318,907.32
  5. Step 5: Solve for x
    x = 21,318,907.32/4,221.73
  6. Step 6: Final answer
    x = 5,049.80

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1.5x scale

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.