Home / 3,321.48-4,979.43-2,222.49

Finding the Fourth Proportional to 3,321.48, 4,979.43 and 2,222.49

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Solution

The fourth proportional to 3,321.48, 4,979.43 and 2,222.49 is: 3,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.48 : 4,979.43 = 2,222.49 : x
  2. Step 2: Convert to fraction form
    3,321.48/4,979.43 = 2,222.49/x
  3. Step 3: Cross multiply
    3,321.48x = 4,979.43 × 2,222.49
  4. Step 4: Simplify right side
    3,321.48x = 11,066,733.38
  5. Step 5: Solve for x
    x = 11,066,733.38/3,321.48
  6. Step 6: Final answer
    x = 3,331.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.