Home / 7,825.28-11,739.68-2,631

Finding the Fourth Proportional to 7,825.28, 11,739.68 and 2,631

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Solution

The fourth proportional to 7,825.28, 11,739.68 and 2,631 is: 3,947.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.28 : 11,739.68 = 2,631 : x
  2. Step 2: Convert to fraction form
    7,825.28/11,739.68 = 2,631/x
  3. Step 3: Cross multiply
    7,825.28x = 11,739.68 × 2,631
  4. Step 4: Simplify right side
    7,825.28x = 30,887,098.08
  5. Step 5: Solve for x
    x = 30,887,098.08/7,825.28
  6. Step 6: Final answer
    x = 3,947.09

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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.