Home / 3,879.08-5,817.60-2,646.26

Finding the Fourth Proportional to 3,879.08, 5,817.60 and 2,646.26

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Solution

The fourth proportional to 3,879.08, 5,817.60 and 2,646.26 is: 3,968.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.08 : 5,817.60 = 2,646.26 : x
  2. Step 2: Convert to fraction form
    3,879.08/5,817.60 = 2,646.26/x
  3. Step 3: Cross multiply
    3,879.08x = 5,817.60 × 2,646.26
  4. Step 4: Simplify right side
    3,879.08x = 15,394,882.18
  5. Step 5: Solve for x
    x = 15,394,882.18/3,879.08
  6. Step 6: Final answer
    x = 3,968.69

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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.