Home / 8,820.82-13,231.24-2,157.30

Finding the Fourth Proportional to 8,820.82, 13,231.24 and 2,157.30

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Solution

The fourth proportional to 8,820.82, 13,231.24 and 2,157.30 is: 3,235.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.82 : 13,231.24 = 2,157.30 : x
  2. Step 2: Convert to fraction form
    8,820.82/13,231.24 = 2,157.30/x
  3. Step 3: Cross multiply
    8,820.82x = 13,231.24 × 2,157.30
  4. Step 4: Simplify right side
    8,820.82x = 28,543,754.05
  5. Step 5: Solve for x
    x = 28,543,754.05/8,820.82
  6. Step 6: Final answer
    x = 3,235.95

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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.