Home / 3,168.86-4,375.08-2,836.71

Finding the Fourth Proportional to 3,168.86, 4,375.08 and 2,836.71

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Solution

The fourth proportional to 3,168.86, 4,375.08 and 2,836.71 is: 3,916.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.86 : 4,375.08 = 2,836.71 : x
  2. Step 2: Convert to fraction form
    3,168.86/4,375.08 = 2,836.71/x
  3. Step 3: Cross multiply
    3,168.86x = 4,375.08 × 2,836.71
  4. Step 4: Simplify right side
    3,168.86x = 12,410,833.19
  5. Step 5: Solve for x
    x = 12,410,833.19/3,168.86
  6. Step 6: Final answer
    x = 3,916.50

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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.