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Finding the Fourth Proportional to 6,728.28, 10,079.87 and 4,874.87

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Solution

The fourth proportional to 6,728.28, 10,079.87 and 4,874.87 is: 7,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.28 : 10,079.87 = 4,874.87 : x
  2. Step 2: Convert to fraction form
    6,728.28/10,079.87 = 4,874.87/x
  3. Step 3: Cross multiply
    6,728.28x = 10,079.87 × 4,874.87
  4. Step 4: Simplify right side
    6,728.28x = 49,137,981.09
  5. Step 5: Solve for x
    x = 49,137,981.09/6,728.28
  6. Step 6: Final answer
    x = 7,303.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.