Home / 3,278.60-4,917.64-1,304.15

Finding the Fourth Proportional to 3,278.60, 4,917.64 and 1,304.15

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Solution

The fourth proportional to 3,278.60, 4,917.64 and 1,304.15 is: 1,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.60 : 4,917.64 = 1,304.15 : x
  2. Step 2: Convert to fraction form
    3,278.60/4,917.64 = 1,304.15/x
  3. Step 3: Cross multiply
    3,278.60x = 4,917.64 × 1,304.15
  4. Step 4: Simplify right side
    3,278.60x = 6,413,338.80
  5. Step 5: Solve for x
    x = 6,413,338.80/3,278.60
  6. Step 6: Final answer
    x = 1,956.12

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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.