Home / 2,750.80-4,126.39-1,107.35

Finding the Fourth Proportional to 2,750.80, 4,126.39 and 1,107.35

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Solution

The fourth proportional to 2,750.80, 4,126.39 and 1,107.35 is: 1,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.80 : 4,126.39 = 1,107.35 : x
  2. Step 2: Convert to fraction form
    2,750.80/4,126.39 = 1,107.35/x
  3. Step 3: Cross multiply
    2,750.80x = 4,126.39 × 1,107.35
  4. Step 4: Simplify right side
    2,750.80x = 4,569,357.97
  5. Step 5: Solve for x
    x = 4,569,357.97/2,750.80
  6. Step 6: Final answer
    x = 1,661.10

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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.