Home / 3,168.87-4,374.26-2,836.71

Finding the Fourth Proportional to 3,168.87, 4,374.26 and 2,836.71

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Solution

The fourth proportional to 3,168.87, 4,374.26 and 2,836.71 is: 3,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.87 : 4,374.26 = 2,836.71 : x
  2. Step 2: Convert to fraction form
    3,168.87/4,374.26 = 2,836.71/x
  3. Step 3: Cross multiply
    3,168.87x = 4,374.26 × 2,836.71
  4. Step 4: Simplify right side
    3,168.87x = 12,408,507.08
  5. Step 5: Solve for x
    x = 12,408,507.08/3,168.87
  6. Step 6: Final answer
    x = 3,915.75

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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.