Home / 8,078.40-12,119.24-2,884.14

Finding the Fourth Proportional to 8,078.40, 12,119.24 and 2,884.14

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Solution

The fourth proportional to 8,078.40, 12,119.24 and 2,884.14 is: 4,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.40 : 12,119.24 = 2,884.14 : x
  2. Step 2: Convert to fraction form
    8,078.40/12,119.24 = 2,884.14/x
  3. Step 3: Cross multiply
    8,078.40x = 12,119.24 × 2,884.14
  4. Step 4: Simplify right side
    8,078.40x = 34,953,584.85
  5. Step 5: Solve for x
    x = 34,953,584.85/8,078.40
  6. Step 6: Final answer
    x = 4,326.80

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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.