Home / 3,415.68-4,716.36-2,221.29

Finding the Fourth Proportional to 3,415.68, 4,716.36 and 2,221.29

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Solution

The fourth proportional to 3,415.68, 4,716.36 and 2,221.29 is: 3,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.68 : 4,716.36 = 2,221.29 : x
  2. Step 2: Convert to fraction form
    3,415.68/4,716.36 = 2,221.29/x
  3. Step 3: Cross multiply
    3,415.68x = 4,716.36 × 2,221.29
  4. Step 4: Simplify right side
    3,415.68x = 10,476,403.30
  5. Step 5: Solve for x
    x = 10,476,403.30/3,415.68
  6. Step 6: Final answer
    x = 3,067.15

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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.