Home / 3,949.12-5,927.27-2,101.79

Finding the Fourth Proportional to 3,949.12, 5,927.27 and 2,101.79

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Solution

The fourth proportional to 3,949.12, 5,927.27 and 2,101.79 is: 3,154.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.12 : 5,927.27 = 2,101.79 : x
  2. Step 2: Convert to fraction form
    3,949.12/5,927.27 = 2,101.79/x
  3. Step 3: Cross multiply
    3,949.12x = 5,927.27 × 2,101.79
  4. Step 4: Simplify right side
    3,949.12x = 12,457,866.30
  5. Step 5: Solve for x
    x = 12,457,866.30/3,949.12
  6. Step 6: Final answer
    x = 3,154.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.