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Finding the Fourth Proportional to 3,375.66, 4,660.56 and 2,118.42

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Solution

The fourth proportional to 3,375.66, 4,660.56 and 2,118.42 is: 2,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.66 : 4,660.56 = 2,118.42 : x
  2. Step 2: Convert to fraction form
    3,375.66/4,660.56 = 2,118.42/x
  3. Step 3: Cross multiply
    3,375.66x = 4,660.56 × 2,118.42
  4. Step 4: Simplify right side
    3,375.66x = 9,873,023.52
  5. Step 5: Solve for x
    x = 9,873,023.52/3,375.66
  6. Step 6: Final answer
    x = 2,924.77

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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.