Home / 3,221.49-4,447.79-2,474.11

Finding the Fourth Proportional to 3,221.49, 4,447.79 and 2,474.11

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Solution

The fourth proportional to 3,221.49, 4,447.79 and 2,474.11 is: 3,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.49 : 4,447.79 = 2,474.11 : x
  2. Step 2: Convert to fraction form
    3,221.49/4,447.79 = 2,474.11/x
  3. Step 3: Cross multiply
    3,221.49x = 4,447.79 × 2,474.11
  4. Step 4: Simplify right side
    3,221.49x = 11,004,287.11
  5. Step 5: Solve for x
    x = 11,004,287.11/3,221.49
  6. Step 6: Final answer
    x = 3,415.90

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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.