Home / 3,274.29-4,517.78-2,155.41

Finding the Fourth Proportional to 3,274.29, 4,517.78 and 2,155.41

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Solution

The fourth proportional to 3,274.29, 4,517.78 and 2,155.41 is: 2,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.29 : 4,517.78 = 2,155.41 : x
  2. Step 2: Convert to fraction form
    3,274.29/4,517.78 = 2,155.41/x
  3. Step 3: Cross multiply
    3,274.29x = 4,517.78 × 2,155.41
  4. Step 4: Simplify right side
    3,274.29x = 9,737,657.41
  5. Step 5: Solve for x
    x = 9,737,657.41/3,274.29
  6. Step 6: Final answer
    x = 2,973.98

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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.