Home / 8,120.24-12,179.90-2,197.04

Finding the Fourth Proportional to 8,120.24, 12,179.90 and 2,197.04

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Solution

The fourth proportional to 8,120.24, 12,179.90 and 2,197.04 is: 3,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.24 : 12,179.90 = 2,197.04 : x
  2. Step 2: Convert to fraction form
    8,120.24/12,179.90 = 2,197.04/x
  3. Step 3: Cross multiply
    8,120.24x = 12,179.90 × 2,197.04
  4. Step 4: Simplify right side
    8,120.24x = 26,759,727.50
  5. Step 5: Solve for x
    x = 26,759,727.50/8,120.24
  6. Step 6: Final answer
    x = 3,295.44

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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.