Home / 5,979-8,960.43-2,279.22

Finding the Fourth Proportional to 5,979, 8,960.43 and 2,279.22

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Solution

The fourth proportional to 5,979, 8,960.43 and 2,279.22 is: 3,415.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979 : 8,960.43 = 2,279.22 : x
  2. Step 2: Convert to fraction form
    5,979/8,960.43 = 2,279.22/x
  3. Step 3: Cross multiply
    5,979x = 8,960.43 × 2,279.22
  4. Step 4: Simplify right side
    5,979x = 20,422,791.26
  5. Step 5: Solve for x
    x = 20,422,791.26/5,979
  6. Step 6: Final answer
    x = 3,415.75

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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.