Home / 5,986.61-8,979.96-2,091.02

Finding the Fourth Proportional to 5,986.61, 8,979.96 and 2,091.02

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Solution

The fourth proportional to 5,986.61, 8,979.96 and 2,091.02 is: 3,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,986.61 : 8,979.96 = 2,091.02 : x
  2. Step 2: Convert to fraction form
    5,986.61/8,979.96 = 2,091.02/x
  3. Step 3: Cross multiply
    5,986.61x = 8,979.96 × 2,091.02
  4. Step 4: Simplify right side
    5,986.61x = 18,777,238.90
  5. Step 5: Solve for x
    x = 18,777,238.90/5,986.61
  6. Step 6: Final answer
    x = 3,136.54

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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.