Home / 6,972.60-9,622.29-3,828.79

Finding the Fourth Proportional to 6,972.60, 9,622.29 and 3,828.79

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Solution

The fourth proportional to 6,972.60, 9,622.29 and 3,828.79 is: 5,283.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.60 : 9,622.29 = 3,828.79 : x
  2. Step 2: Convert to fraction form
    6,972.60/9,622.29 = 3,828.79/x
  3. Step 3: Cross multiply
    6,972.60x = 9,622.29 × 3,828.79
  4. Step 4: Simplify right side
    6,972.60x = 36,841,679.62
  5. Step 5: Solve for x
    x = 36,841,679.62/6,972.60
  6. Step 6: Final answer
    x = 5,283.78

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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.