Home / 2,755.18-4,128.66-1,110.82

Finding the Fourth Proportional to 2,755.18, 4,128.66 and 1,110.82

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Solution

The fourth proportional to 2,755.18, 4,128.66 and 1,110.82 is: 1,664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.18 : 4,128.66 = 1,110.82 : x
  2. Step 2: Convert to fraction form
    2,755.18/4,128.66 = 1,110.82/x
  3. Step 3: Cross multiply
    2,755.18x = 4,128.66 × 1,110.82
  4. Step 4: Simplify right side
    2,755.18x = 4,586,198.10
  5. Step 5: Solve for x
    x = 4,586,198.10/2,755.18
  6. Step 6: Final answer
    x = 1,664.57

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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.