Home / 5,489.70-8,240.49-2,205.06

Finding the Fourth Proportional to 5,489.70, 8,240.49 and 2,205.06

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Solution

The fourth proportional to 5,489.70, 8,240.49 and 2,205.06 is: 3,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.70 : 8,240.49 = 2,205.06 : x
  2. Step 2: Convert to fraction form
    5,489.70/8,240.49 = 2,205.06/x
  3. Step 3: Cross multiply
    5,489.70x = 8,240.49 × 2,205.06
  4. Step 4: Simplify right side
    5,489.70x = 18,170,774.88
  5. Step 5: Solve for x
    x = 18,170,774.88/5,489.70
  6. Step 6: Final answer
    x = 3,309.98

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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.