Home / 5,986.78-8,982.33-2,091.76

Finding the Fourth Proportional to 5,986.78, 8,982.33 and 2,091.76

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Solution

The fourth proportional to 5,986.78, 8,982.33 and 2,091.76 is: 3,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,986.78 : 8,982.33 = 2,091.76 : x
  2. Step 2: Convert to fraction form
    5,986.78/8,982.33 = 2,091.76/x
  3. Step 3: Cross multiply
    5,986.78x = 8,982.33 × 2,091.76
  4. Step 4: Simplify right side
    5,986.78x = 18,788,878.60
  5. Step 5: Solve for x
    x = 18,788,878.60/5,986.78
  6. Step 6: Final answer
    x = 3,138.39

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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.