Home / 3,396.78-4,687.67-2,069.55

Finding the Fourth Proportional to 3,396.78, 4,687.67 and 2,069.55

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Solution

The fourth proportional to 3,396.78, 4,687.67 and 2,069.55 is: 2,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.78 : 4,687.67 = 2,069.55 : x
  2. Step 2: Convert to fraction form
    3,396.78/4,687.67 = 2,069.55/x
  3. Step 3: Cross multiply
    3,396.78x = 4,687.67 × 2,069.55
  4. Step 4: Simplify right side
    3,396.78x = 9,701,372.62
  5. Step 5: Solve for x
    x = 9,701,372.62/3,396.78
  6. Step 6: Final answer
    x = 2,856.05

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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.