Home / 4,220.67-5,822.19-2,961.21

Finding the Fourth Proportional to 4,220.67, 5,822.19 and 2,961.21

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Solution

The fourth proportional to 4,220.67, 5,822.19 and 2,961.21 is: 4,084.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.67 : 5,822.19 = 2,961.21 : x
  2. Step 2: Convert to fraction form
    4,220.67/5,822.19 = 2,961.21/x
  3. Step 3: Cross multiply
    4,220.67x = 5,822.19 × 2,961.21
  4. Step 4: Simplify right side
    4,220.67x = 17,240,727.25
  5. Step 5: Solve for x
    x = 17,240,727.25/4,220.67
  6. Step 6: Final answer
    x = 4,084.83

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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.