Home / 3,212.82-4,428.90-2,216.43

Finding the Fourth Proportional to 3,212.82, 4,428.90 and 2,216.43

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Solution

The fourth proportional to 3,212.82, 4,428.90 and 2,216.43 is: 3,055.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.82 : 4,428.90 = 2,216.43 : x
  2. Step 2: Convert to fraction form
    3,212.82/4,428.90 = 2,216.43/x
  3. Step 3: Cross multiply
    3,212.82x = 4,428.90 × 2,216.43
  4. Step 4: Simplify right side
    3,212.82x = 9,816,346.83
  5. Step 5: Solve for x
    x = 9,816,346.83/3,212.82
  6. Step 6: Final answer
    x = 3,055.37

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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.