Home / 3,396.20-4,687.20-2,069.87

Finding the Fourth Proportional to 3,396.20, 4,687.20 and 2,069.87

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Solution

The fourth proportional to 3,396.20, 4,687.20 and 2,069.87 is: 2,856.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.20 : 4,687.20 = 2,069.87 : x
  2. Step 2: Convert to fraction form
    3,396.20/4,687.20 = 2,069.87/x
  3. Step 3: Cross multiply
    3,396.20x = 4,687.20 × 2,069.87
  4. Step 4: Simplify right side
    3,396.20x = 9,701,906.38
  5. Step 5: Solve for x
    x = 9,701,906.38/3,396.20
  6. Step 6: Final answer
    x = 2,856.69

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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.