Home / 6,331.20-8,736.08-3,812.72

Finding the Fourth Proportional to 6,331.20, 8,736.08 and 3,812.72

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Solution

The fourth proportional to 6,331.20, 8,736.08 and 3,812.72 is: 5,260.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.20 : 8,736.08 = 3,812.72 : x
  2. Step 2: Convert to fraction form
    6,331.20/8,736.08 = 3,812.72/x
  3. Step 3: Cross multiply
    6,331.20x = 8,736.08 × 3,812.72
  4. Step 4: Simplify right side
    6,331.20x = 33,308,226.94
  5. Step 5: Solve for x
    x = 33,308,226.94/6,331.20
  6. Step 6: Final answer
    x = 5,260.97

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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.