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Finding the Fourth Proportional to 6,288.87, 8,680.20 and 3,635.89

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Solution

The fourth proportional to 6,288.87, 8,680.20 and 3,635.89 is: 5,018.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.87 : 8,680.20 = 3,635.89 : x
  2. Step 2: Convert to fraction form
    6,288.87/8,680.20 = 3,635.89/x
  3. Step 3: Cross multiply
    6,288.87x = 8,680.20 × 3,635.89
  4. Step 4: Simplify right side
    6,288.87x = 31,560,252.38
  5. Step 5: Solve for x
    x = 31,560,252.38/6,288.87
  6. Step 6: Final answer
    x = 5,018.43

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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.