Home / 2,879.51-3,969.78-2,458.04

Finding the Fourth Proportional to 2,879.51, 3,969.78 and 2,458.04

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Solution

The fourth proportional to 2,879.51, 3,969.78 and 2,458.04 is: 3,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.51 : 3,969.78 = 2,458.04 : x
  2. Step 2: Convert to fraction form
    2,879.51/3,969.78 = 2,458.04/x
  3. Step 3: Cross multiply
    2,879.51x = 3,969.78 × 2,458.04
  4. Step 4: Simplify right side
    2,879.51x = 9,757,878.03
  5. Step 5: Solve for x
    x = 9,757,878.03/2,879.51
  6. Step 6: Final answer
    x = 3,388.73

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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.