Home / 2,755.33-4,128.94-2,171.73

Finding the Fourth Proportional to 2,755.33, 4,128.94 and 2,171.73

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Solution

The fourth proportional to 2,755.33, 4,128.94 and 2,171.73 is: 3,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.33 : 4,128.94 = 2,171.73 : x
  2. Step 2: Convert to fraction form
    2,755.33/4,128.94 = 2,171.73/x
  3. Step 3: Cross multiply
    2,755.33x = 4,128.94 × 2,171.73
  4. Step 4: Simplify right side
    2,755.33x = 8,966,942.87
  5. Step 5: Solve for x
    x = 8,966,942.87/2,755.33
  6. Step 6: Final answer
    x = 3,254.40

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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.