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Finding the Fourth Proportional to 2,679.22, 4,020.36 and 1,755.22

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Solution

The fourth proportional to 2,679.22, 4,020.36 and 1,755.22 is: 2,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.22 : 4,020.36 = 1,755.22 : x
  2. Step 2: Convert to fraction form
    2,679.22/4,020.36 = 1,755.22/x
  3. Step 3: Cross multiply
    2,679.22x = 4,020.36 × 1,755.22
  4. Step 4: Simplify right side
    2,679.22x = 7,056,616.28
  5. Step 5: Solve for x
    x = 7,056,616.28/2,679.22
  6. Step 6: Final answer
    x = 2,633.83

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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.