Home / 3,297.20-4,945-1,105.36

Finding the Fourth Proportional to 3,297.20, 4,945 and 1,105.36

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Solution

The fourth proportional to 3,297.20, 4,945 and 1,105.36 is: 1,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.20 : 4,945 = 1,105.36 : x
  2. Step 2: Convert to fraction form
    3,297.20/4,945 = 1,105.36/x
  3. Step 3: Cross multiply
    3,297.20x = 4,945 × 1,105.36
  4. Step 4: Simplify right side
    3,297.20x = 5,466,005.20
  5. Step 5: Solve for x
    x = 5,466,005.20/3,297.20
  6. Step 6: Final answer
    x = 1,657.77

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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.