Home / 8,119.41-12,179.46-2,573.16

Finding the Fourth Proportional to 8,119.41, 12,179.46 and 2,573.16

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Solution

The fourth proportional to 8,119.41, 12,179.46 and 2,573.16 is: 3,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.41 : 12,179.46 = 2,573.16 : x
  2. Step 2: Convert to fraction form
    8,119.41/12,179.46 = 2,573.16/x
  3. Step 3: Cross multiply
    8,119.41x = 12,179.46 × 2,573.16
  4. Step 4: Simplify right side
    8,119.41x = 31,339,697.52
  5. Step 5: Solve for x
    x = 31,339,697.52/8,119.41
  6. Step 6: Final answer
    x = 3,859.85

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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.