Home / 3,974.83-5,485.39-2,206.58

Finding the Fourth Proportional to 3,974.83, 5,485.39 and 2,206.58

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Solution

The fourth proportional to 3,974.83, 5,485.39 and 2,206.58 is: 3,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.83 : 5,485.39 = 2,206.58 : x
  2. Step 2: Convert to fraction form
    3,974.83/5,485.39 = 2,206.58/x
  3. Step 3: Cross multiply
    3,974.83x = 5,485.39 × 2,206.58
  4. Step 4: Simplify right side
    3,974.83x = 12,103,918.92
  5. Step 5: Solve for x
    x = 12,103,918.92/3,974.83
  6. Step 6: Final answer
    x = 3,045.14

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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.