Home / 3,278.43-4,889.97-2,785.95

Finding the Fourth Proportional to 3,278.43, 4,889.97 and 2,785.95

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Solution

The fourth proportional to 3,278.43, 4,889.97 and 2,785.95 is: 4,155.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.43 : 4,889.97 = 2,785.95 : x
  2. Step 2: Convert to fraction form
    3,278.43/4,889.97 = 2,785.95/x
  3. Step 3: Cross multiply
    3,278.43x = 4,889.97 × 2,785.95
  4. Step 4: Simplify right side
    3,278.43x = 13,623,211.92
  5. Step 5: Solve for x
    x = 13,623,211.92/3,278.43
  6. Step 6: Final answer
    x = 4,155.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.