Home / 2,751.38-4,129.13-1,107.95

Finding the Fourth Proportional to 2,751.38, 4,129.13 and 1,107.95

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Solution

The fourth proportional to 2,751.38, 4,129.13 and 1,107.95 is: 1,662.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.38 : 4,129.13 = 1,107.95 : x
  2. Step 2: Convert to fraction form
    2,751.38/4,129.13 = 1,107.95/x
  3. Step 3: Cross multiply
    2,751.38x = 4,129.13 × 1,107.95
  4. Step 4: Simplify right side
    2,751.38x = 4,574,845.48
  5. Step 5: Solve for x
    x = 4,574,845.48/2,751.38
  6. Step 6: Final answer
    x = 1,662.74

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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.