Home / 7,579.17-11,372.49-3,422.07

Finding the Fourth Proportional to 7,579.17, 11,372.49 and 3,422.07

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Solution

The fourth proportional to 7,579.17, 11,372.49 and 3,422.07 is: 5,134.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.17 : 11,372.49 = 3,422.07 : x
  2. Step 2: Convert to fraction form
    7,579.17/11,372.49 = 3,422.07/x
  3. Step 3: Cross multiply
    7,579.17x = 11,372.49 × 3,422.07
  4. Step 4: Simplify right side
    7,579.17x = 38,917,456.85
  5. Step 5: Solve for x
    x = 38,917,456.85/7,579.17
  6. Step 6: Final answer
    x = 5,134.79

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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.