Home / 6,972.66-9,622.26-3,828.78

Finding the Fourth Proportional to 6,972.66, 9,622.26 and 3,828.78

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Solution

The fourth proportional to 6,972.66, 9,622.26 and 3,828.78 is: 5,283.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.66 : 9,622.26 = 3,828.78 : x
  2. Step 2: Convert to fraction form
    6,972.66/9,622.26 = 3,828.78/x
  3. Step 3: Cross multiply
    6,972.66x = 9,622.26 × 3,828.78
  4. Step 4: Simplify right side
    6,972.66x = 36,841,516.64
  5. Step 5: Solve for x
    x = 36,841,516.64/6,972.66
  6. Step 6: Final answer
    x = 5,283.71

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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.