Home / 2,750.25-4,122.23-1,105.75

Finding the Fourth Proportional to 2,750.25, 4,122.23 and 1,105.75

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Solution

The fourth proportional to 2,750.25, 4,122.23 and 1,105.75 is: 1,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.25 : 4,122.23 = 1,105.75 : x
  2. Step 2: Convert to fraction form
    2,750.25/4,122.23 = 1,105.75/x
  3. Step 3: Cross multiply
    2,750.25x = 4,122.23 × 1,105.75
  4. Step 4: Simplify right side
    2,750.25x = 4,558,135.21
  5. Step 5: Solve for x
    x = 4,558,135.21/2,750.25
  6. Step 6: Final answer
    x = 1,657.35

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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.