Home / 3,178.31-4,759.20-2,194.16

Finding the Fourth Proportional to 3,178.31, 4,759.20 and 2,194.16

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Solution

The fourth proportional to 3,178.31, 4,759.20 and 2,194.16 is: 3,285.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.31 : 4,759.20 = 2,194.16 : x
  2. Step 2: Convert to fraction form
    3,178.31/4,759.20 = 2,194.16/x
  3. Step 3: Cross multiply
    3,178.31x = 4,759.20 × 2,194.16
  4. Step 4: Simplify right side
    3,178.31x = 10,442,422.48
  5. Step 5: Solve for x
    x = 10,442,422.48/3,178.31
  6. Step 6: Final answer
    x = 3,285.53

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1.5x scale

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.