Home / 3,318.82-4,579.92-1,902.76

Finding the Fourth Proportional to 3,318.82, 4,579.92 and 1,902.76

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Solution

The fourth proportional to 3,318.82, 4,579.92 and 1,902.76 is: 2,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.82 : 4,579.92 = 1,902.76 : x
  2. Step 2: Convert to fraction form
    3,318.82/4,579.92 = 1,902.76/x
  3. Step 3: Cross multiply
    3,318.82x = 4,579.92 × 1,902.76
  4. Step 4: Simplify right side
    3,318.82x = 8,714,488.58
  5. Step 5: Solve for x
    x = 8,714,488.58/3,318.82
  6. Step 6: Final answer
    x = 2,625.78

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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.