Home / 5,485.80-8,228.66-2,198.85

Finding the Fourth Proportional to 5,485.80, 8,228.66 and 2,198.85

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Solution

The fourth proportional to 5,485.80, 8,228.66 and 2,198.85 is: 3,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.80 : 8,228.66 = 2,198.85 : x
  2. Step 2: Convert to fraction form
    5,485.80/8,228.66 = 2,198.85/x
  3. Step 3: Cross multiply
    5,485.80x = 8,228.66 × 2,198.85
  4. Step 4: Simplify right side
    5,485.80x = 18,093,565.74
  5. Step 5: Solve for x
    x = 18,093,565.74/5,485.80
  6. Step 6: Final answer
    x = 3,298.25

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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.