Home / 7,871.25-11,805.44-2,606.07

Finding the Fourth Proportional to 7,871.25, 11,805.44 and 2,606.07

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Solution

The fourth proportional to 7,871.25, 11,805.44 and 2,606.07 is: 3,908.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.25 : 11,805.44 = 2,606.07 : x
  2. Step 2: Convert to fraction form
    7,871.25/11,805.44 = 2,606.07/x
  3. Step 3: Cross multiply
    7,871.25x = 11,805.44 × 2,606.07
  4. Step 4: Simplify right side
    7,871.25x = 30,765,789.99
  5. Step 5: Solve for x
    x = 30,765,789.99/7,871.25
  6. Step 6: Final answer
    x = 3,908.63

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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.