Home / 7,839.26-11,750.64-2,572.90

Finding the Fourth Proportional to 7,839.26, 11,750.64 and 2,572.90

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Solution

The fourth proportional to 7,839.26, 11,750.64 and 2,572.90 is: 3,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.26 : 11,750.64 = 2,572.90 : x
  2. Step 2: Convert to fraction form
    7,839.26/11,750.64 = 2,572.90/x
  3. Step 3: Cross multiply
    7,839.26x = 11,750.64 × 2,572.90
  4. Step 4: Simplify right side
    7,839.26x = 30,233,221.66
  5. Step 5: Solve for x
    x = 30,233,221.66/7,839.26
  6. Step 6: Final answer
    x = 3,856.64

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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.