Home / 3,194.20-4,397.71-2,485.18

Finding the Fourth Proportional to 3,194.20, 4,397.71 and 2,485.18

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Solution

The fourth proportional to 3,194.20, 4,397.71 and 2,485.18 is: 3,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.20 : 4,397.71 = 2,485.18 : x
  2. Step 2: Convert to fraction form
    3,194.20/4,397.71 = 2,485.18/x
  3. Step 3: Cross multiply
    3,194.20x = 4,397.71 × 2,485.18
  4. Step 4: Simplify right side
    3,194.20x = 10,929,100.94
  5. Step 5: Solve for x
    x = 10,929,100.94/3,194.20
  6. Step 6: Final answer
    x = 3,421.55

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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.