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Finding the Fourth Proportional to 6,169.78, 8,514.30 and 3,375.28

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Solution

The fourth proportional to 6,169.78, 8,514.30 and 3,375.28 is: 4,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,169.78 : 8,514.30 = 3,375.28 : x
  2. Step 2: Convert to fraction form
    6,169.78/8,514.30 = 3,375.28/x
  3. Step 3: Cross multiply
    6,169.78x = 8,514.30 × 3,375.28
  4. Step 4: Simplify right side
    6,169.78x = 28,738,169.80
  5. Step 5: Solve for x
    x = 28,738,169.80/6,169.78
  6. Step 6: Final answer
    x = 4,657.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.