Home / 8,080.47-12,120.02-3,400.29

Finding the Fourth Proportional to 8,080.47, 12,120.02 and 3,400.29

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Solution

The fourth proportional to 8,080.47, 12,120.02 and 3,400.29 is: 5,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.47 : 12,120.02 = 3,400.29 : x
  2. Step 2: Convert to fraction form
    8,080.47/12,120.02 = 3,400.29/x
  3. Step 3: Cross multiply
    8,080.47x = 12,120.02 × 3,400.29
  4. Step 4: Simplify right side
    8,080.47x = 41,211,565.80
  5. Step 5: Solve for x
    x = 41,211,565.80/8,080.47
  6. Step 6: Final answer
    x = 5,100.14

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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.