Home / 3,278.17-4,917.61-1,087.12

Finding the Fourth Proportional to 3,278.17, 4,917.61 and 1,087.12

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Solution

The fourth proportional to 3,278.17, 4,917.61 and 1,087.12 is: 1,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.17 : 4,917.61 = 1,087.12 : x
  2. Step 2: Convert to fraction form
    3,278.17/4,917.61 = 1,087.12/x
  3. Step 3: Cross multiply
    3,278.17x = 4,917.61 × 1,087.12
  4. Step 4: Simplify right side
    3,278.17x = 5,346,039.69
  5. Step 5: Solve for x
    x = 5,346,039.69/3,278.17
  6. Step 6: Final answer
    x = 1,630.80

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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.