Home / 3,980.20-5,493.33-2,212.37

Finding the Fourth Proportional to 3,980.20, 5,493.33 and 2,212.37

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Solution

The fourth proportional to 3,980.20, 5,493.33 and 2,212.37 is: 3,053.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.20 : 5,493.33 = 2,212.37 : x
  2. Step 2: Convert to fraction form
    3,980.20/5,493.33 = 2,212.37/x
  3. Step 3: Cross multiply
    3,980.20x = 5,493.33 × 2,212.37
  4. Step 4: Simplify right side
    3,980.20x = 12,153,278.49
  5. Step 5: Solve for x
    x = 12,153,278.49/3,980.20
  6. Step 6: Final answer
    x = 3,053.43

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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.