Home / 5,257.31-7,887.78-2,335.23

Finding the Fourth Proportional to 5,257.31, 7,887.78 and 2,335.23

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Solution

The fourth proportional to 5,257.31, 7,887.78 and 2,335.23 is: 3,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.31 : 7,887.78 = 2,335.23 : x
  2. Step 2: Convert to fraction form
    5,257.31/7,887.78 = 2,335.23/x
  3. Step 3: Cross multiply
    5,257.31x = 7,887.78 × 2,335.23
  4. Step 4: Simplify right side
    5,257.31x = 18,419,780.49
  5. Step 5: Solve for x
    x = 18,419,780.49/5,257.31
  6. Step 6: Final answer
    x = 3,503.65

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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.