Home / 3,272.70-4,913.55-2,109.90

Finding the Fourth Proportional to 3,272.70, 4,913.55 and 2,109.90

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Solution

The fourth proportional to 3,272.70, 4,913.55 and 2,109.90 is: 3,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.70 : 4,913.55 = 2,109.90 : x
  2. Step 2: Convert to fraction form
    3,272.70/4,913.55 = 2,109.90/x
  3. Step 3: Cross multiply
    3,272.70x = 4,913.55 × 2,109.90
  4. Step 4: Simplify right side
    3,272.70x = 10,367,099.15
  5. Step 5: Solve for x
    x = 10,367,099.15/3,272.70
  6. Step 6: Final answer
    x = 3,167.75

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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.