Home / 3,998.06-5,517.57-2,205.53

Finding the Fourth Proportional to 3,998.06, 5,517.57 and 2,205.53

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Solution

The fourth proportional to 3,998.06, 5,517.57 and 2,205.53 is: 3,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.06 : 5,517.57 = 2,205.53 : x
  2. Step 2: Convert to fraction form
    3,998.06/5,517.57 = 2,205.53/x
  3. Step 3: Cross multiply
    3,998.06x = 5,517.57 × 2,205.53
  4. Step 4: Simplify right side
    3,998.06x = 12,169,155.13
  5. Step 5: Solve for x
    x = 12,169,155.13/3,998.06
  6. Step 6: Final answer
    x = 3,043.77

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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.