Home / 3,986.50-5,500.99-2,193.96

Finding the Fourth Proportional to 3,986.50, 5,500.99 and 2,193.96

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Solution

The fourth proportional to 3,986.50, 5,500.99 and 2,193.96 is: 3,027.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.50 : 5,500.99 = 2,193.96 : x
  2. Step 2: Convert to fraction form
    3,986.50/5,500.99 = 2,193.96/x
  3. Step 3: Cross multiply
    3,986.50x = 5,500.99 × 2,193.96
  4. Step 4: Simplify right side
    3,986.50x = 12,068,952.02
  5. Step 5: Solve for x
    x = 12,068,952.02/3,986.50
  6. Step 6: Final answer
    x = 3,027.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.