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Finding the Fourth Proportional to 4,479.96, 6,714.96 and 3,380.76

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Solution

The fourth proportional to 4,479.96, 6,714.96 and 3,380.76 is: 5,067.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.96 : 6,714.96 = 3,380.76 : x
  2. Step 2: Convert to fraction form
    4,479.96/6,714.96 = 3,380.76/x
  3. Step 3: Cross multiply
    4,479.96x = 6,714.96 × 3,380.76
  4. Step 4: Simplify right side
    4,479.96x = 22,701,668.17
  5. Step 5: Solve for x
    x = 22,701,668.17/4,479.96
  6. Step 6: Final answer
    x = 5,067.38

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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.