Home / 3,879.02-5,352.89-2,110.62

Finding the Fourth Proportional to 3,879.02, 5,352.89 and 2,110.62

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Solution

The fourth proportional to 3,879.02, 5,352.89 and 2,110.62 is: 2,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.02 : 5,352.89 = 2,110.62 : x
  2. Step 2: Convert to fraction form
    3,879.02/5,352.89 = 2,110.62/x
  3. Step 3: Cross multiply
    3,879.02x = 5,352.89 × 2,110.62
  4. Step 4: Simplify right side
    3,879.02x = 11,297,926.21
  5. Step 5: Solve for x
    x = 11,297,926.21/3,879.02
  6. Step 6: Final answer
    x = 2,912.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.