Home / 2,749.64-4,122.92-1,105.34

Finding the Fourth Proportional to 2,749.64, 4,122.92 and 1,105.34

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Solution

The fourth proportional to 2,749.64, 4,122.92 and 1,105.34 is: 1,657.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.64 : 4,122.92 = 1,105.34 : x
  2. Step 2: Convert to fraction form
    2,749.64/4,122.92 = 1,105.34/x
  3. Step 3: Cross multiply
    2,749.64x = 4,122.92 × 1,105.34
  4. Step 4: Simplify right side
    2,749.64x = 4,557,202.25
  5. Step 5: Solve for x
    x = 4,557,202.25/2,749.64
  6. Step 6: Final answer
    x = 1,657.38

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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.