Home / 3,974.68-5,485.08-2,206.30

Finding the Fourth Proportional to 3,974.68, 5,485.08 and 2,206.30

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Solution

The fourth proportional to 3,974.68, 5,485.08 and 2,206.30 is: 3,044.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.68 : 5,485.08 = 2,206.30 : x
  2. Step 2: Convert to fraction form
    3,974.68/5,485.08 = 2,206.30/x
  3. Step 3: Cross multiply
    3,974.68x = 5,485.08 × 2,206.30
  4. Step 4: Simplify right side
    3,974.68x = 12,101,732.00
  5. Step 5: Solve for x
    x = 12,101,732.00/3,974.68
  6. Step 6: Final answer
    x = 3,044.71

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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.