Home / 3,211.05-4,432.40-2,000.73

Finding the Fourth Proportional to 3,211.05, 4,432.40 and 2,000.73

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Solution

The fourth proportional to 3,211.05, 4,432.40 and 2,000.73 is: 2,761.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.05 : 4,432.40 = 2,000.73 : x
  2. Step 2: Convert to fraction form
    3,211.05/4,432.40 = 2,000.73/x
  3. Step 3: Cross multiply
    3,211.05x = 4,432.40 × 2,000.73
  4. Step 4: Simplify right side
    3,211.05x = 8,868,025.65
  5. Step 5: Solve for x
    x = 8,868,025.65/3,211.05
  6. Step 6: Final answer
    x = 2,761.72

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1.5x scale

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.