Home / 7,898.29-11,843.46-2,631.43

Finding the Fourth Proportional to 7,898.29, 11,843.46 and 2,631.43

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Solution

The fourth proportional to 7,898.29, 11,843.46 and 2,631.43 is: 3,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.29 : 11,843.46 = 2,631.43 : x
  2. Step 2: Convert to fraction form
    7,898.29/11,843.46 = 2,631.43/x
  3. Step 3: Cross multiply
    7,898.29x = 11,843.46 × 2,631.43
  4. Step 4: Simplify right side
    7,898.29x = 31,165,222.79
  5. Step 5: Solve for x
    x = 31,165,222.79/7,898.29
  6. Step 6: Final answer
    x = 3,945.82

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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.