Home / 3,515.20-4,850.42-2,257.40

Finding the Fourth Proportional to 3,515.20, 4,850.42 and 2,257.40

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Solution

The fourth proportional to 3,515.20, 4,850.42 and 2,257.40 is: 3,114.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.20 : 4,850.42 = 2,257.40 : x
  2. Step 2: Convert to fraction form
    3,515.20/4,850.42 = 2,257.40/x
  3. Step 3: Cross multiply
    3,515.20x = 4,850.42 × 2,257.40
  4. Step 4: Simplify right side
    3,515.20x = 10,949,338.95
  5. Step 5: Solve for x
    x = 10,949,338.95/3,515.20
  6. Step 6: Final answer
    x = 3,114.86

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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.