Home / 2,755.11-4,131.99-1,111.17

Finding the Fourth Proportional to 2,755.11, 4,131.99 and 1,111.17

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Solution

The fourth proportional to 2,755.11, 4,131.99 and 1,111.17 is: 1,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.11 : 4,131.99 = 1,111.17 : x
  2. Step 2: Convert to fraction form
    2,755.11/4,131.99 = 1,111.17/x
  3. Step 3: Cross multiply
    2,755.11x = 4,131.99 × 1,111.17
  4. Step 4: Simplify right side
    2,755.11x = 4,591,343.33
  5. Step 5: Solve for x
    x = 4,591,343.33/2,755.11
  6. Step 6: Final answer
    x = 1,666.48

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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.