Home / 3,949.34-5,450.00-2,181.11

Finding the Fourth Proportional to 3,949.34, 5,450.00 and 2,181.11

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Solution

The fourth proportional to 3,949.34, 5,450.00 and 2,181.11 is: 3,009.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.34 : 5,450.00 = 2,181.11 : x
  2. Step 2: Convert to fraction form
    3,949.34/5,450.00 = 2,181.11/x
  3. Step 3: Cross multiply
    3,949.34x = 5,450.00 × 2,181.11
  4. Step 4: Simplify right side
    3,949.34x = 11,887,011.34
  5. Step 5: Solve for x
    x = 11,887,011.34/3,949.34
  6. Step 6: Final answer
    x = 3,009.88

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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.