Home / 3,513.87-5,269.04-2,179.80

Finding the Fourth Proportional to 3,513.87, 5,269.04 and 2,179.80

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Solution

The fourth proportional to 3,513.87, 5,269.04 and 2,179.80 is: 3,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.87 : 5,269.04 = 2,179.80 : x
  2. Step 2: Convert to fraction form
    3,513.87/5,269.04 = 2,179.80/x
  3. Step 3: Cross multiply
    3,513.87x = 5,269.04 × 2,179.80
  4. Step 4: Simplify right side
    3,513.87x = 11,485,453.39
  5. Step 5: Solve for x
    x = 11,485,453.39/3,513.87
  6. Step 6: Final answer
    x = 3,268.61

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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.