Home / 2,755.43-4,133.12-1,111.95

Finding the Fourth Proportional to 2,755.43, 4,133.12 and 1,111.95

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Solution

The fourth proportional to 2,755.43, 4,133.12 and 1,111.95 is: 1,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.43 : 4,133.12 = 1,111.95 : x
  2. Step 2: Convert to fraction form
    2,755.43/4,133.12 = 1,111.95/x
  3. Step 3: Cross multiply
    2,755.43x = 4,133.12 × 1,111.95
  4. Step 4: Simplify right side
    2,755.43x = 4,595,796.56
  5. Step 5: Solve for x
    x = 4,595,796.56/2,755.43
  6. Step 6: Final answer
    x = 1,667.91

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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.