Home / 6,171.28-8,516.38-3,376.78

Finding the Fourth Proportional to 6,171.28, 8,516.38 and 3,376.78

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Solution

The fourth proportional to 6,171.28, 8,516.38 and 3,376.78 is: 4,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,171.28 : 8,516.38 = 3,376.78 : x
  2. Step 2: Convert to fraction form
    6,171.28/8,516.38 = 3,376.78/x
  3. Step 3: Cross multiply
    6,171.28x = 8,516.38 × 3,376.78
  4. Step 4: Simplify right side
    6,171.28x = 28,757,941.66
  5. Step 5: Solve for x
    x = 28,757,941.66/6,171.28
  6. Step 6: Final answer
    x = 4,659.96

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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.