Home / 5,986.20-8,979.36-2,090.62

Finding the Fourth Proportional to 5,986.20, 8,979.36 and 2,090.62

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Solution

The fourth proportional to 5,986.20, 8,979.36 and 2,090.62 is: 3,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,986.20 : 8,979.36 = 2,090.62 : x
  2. Step 2: Convert to fraction form
    5,986.20/8,979.36 = 2,090.62/x
  3. Step 3: Cross multiply
    5,986.20x = 8,979.36 × 2,090.62
  4. Step 4: Simplify right side
    5,986.20x = 18,772,429.60
  5. Step 5: Solve for x
    x = 18,772,429.60/5,986.20
  6. Step 6: Final answer
    x = 3,135.95

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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.