Home / 5,620.08-8,431.49-2,660.55

Finding the Fourth Proportional to 5,620.08, 8,431.49 and 2,660.55

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Solution

The fourth proportional to 5,620.08, 8,431.49 and 2,660.55 is: 3,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.08 : 8,431.49 = 2,660.55 : x
  2. Step 2: Convert to fraction form
    5,620.08/8,431.49 = 2,660.55/x
  3. Step 3: Cross multiply
    5,620.08x = 8,431.49 × 2,660.55
  4. Step 4: Simplify right side
    5,620.08x = 22,432,375.75
  5. Step 5: Solve for x
    x = 22,432,375.75/5,620.08
  6. Step 6: Final answer
    x = 3,991.47

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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.