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Finding the Fourth Proportional to 8,044.80, 12,067.20 and 2,851.20

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Solution

The fourth proportional to 8,044.80, 12,067.20 and 2,851.20 is: 4,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,044.80 : 12,067.20 = 2,851.20 : x
  2. Step 2: Convert to fraction form
    8,044.80/12,067.20 = 2,851.20/x
  3. Step 3: Cross multiply
    8,044.80x = 12,067.20 × 2,851.20
  4. Step 4: Simplify right side
    8,044.80x = 34,406,000.64
  5. Step 5: Solve for x
    x = 34,406,000.64/8,044.80
  6. Step 6: Final answer
    x = 4,276.80

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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.