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Finding the Fourth Proportional to 5,986.07, 8,979.12 and 2,090.48

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Solution

The fourth proportional to 5,986.07, 8,979.12 and 2,090.48 is: 3,135.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,986.07 : 8,979.12 = 2,090.48 : x
  2. Step 2: Convert to fraction form
    5,986.07/8,979.12 = 2,090.48/x
  3. Step 3: Cross multiply
    5,986.07x = 8,979.12 × 2,090.48
  4. Step 4: Simplify right side
    5,986.07x = 18,770,625.88
  5. Step 5: Solve for x
    x = 18,770,625.88/5,986.07
  6. Step 6: Final answer
    x = 3,135.72

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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.