Home / 8,080.50-12,120.78-2,458.24

Finding the Fourth Proportional to 8,080.50, 12,120.78 and 2,458.24

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Solution

The fourth proportional to 8,080.50, 12,120.78 and 2,458.24 is: 3,687.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.50 : 12,120.78 = 2,458.24 : x
  2. Step 2: Convert to fraction form
    8,080.50/12,120.78 = 2,458.24/x
  3. Step 3: Cross multiply
    8,080.50x = 12,120.78 × 2,458.24
  4. Step 4: Simplify right side
    8,080.50x = 29,795,786.23
  5. Step 5: Solve for x
    x = 29,795,786.23/8,080.50
  6. Step 6: Final answer
    x = 3,687.37

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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.