Home / 3,611.72-5,414.99-2,438.78

Finding the Fourth Proportional to 3,611.72, 5,414.99 and 2,438.78

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Solution

The fourth proportional to 3,611.72, 5,414.99 and 2,438.78 is: 3,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.72 : 5,414.99 = 2,438.78 : x
  2. Step 2: Convert to fraction form
    3,611.72/5,414.99 = 2,438.78/x
  3. Step 3: Cross multiply
    3,611.72x = 5,414.99 × 2,438.78
  4. Step 4: Simplify right side
    3,611.72x = 13,205,930.04
  5. Step 5: Solve for x
    x = 13,205,930.04/3,611.72
  6. Step 6: Final answer
    x = 3,656.42

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1.5x scale

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.