Home / 8,080.26-12,119.42-2,157.60

Finding the Fourth Proportional to 8,080.26, 12,119.42 and 2,157.60

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Solution

The fourth proportional to 8,080.26, 12,119.42 and 2,157.60 is: 3,236.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.26 : 12,119.42 = 2,157.60 : x
  2. Step 2: Convert to fraction form
    8,080.26/12,119.42 = 2,157.60/x
  3. Step 3: Cross multiply
    8,080.26x = 12,119.42 × 2,157.60
  4. Step 4: Simplify right side
    8,080.26x = 26,148,849.80
  5. Step 5: Solve for x
    x = 26,148,849.80/8,080.26
  6. Step 6: Final answer
    x = 3,236.14

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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.