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Finding the Fourth Proportional to 5,579.89, 8,371.11 and 2,460.78

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Solution

The fourth proportional to 5,579.89, 8,371.11 and 2,460.78 is: 3,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.89 : 8,371.11 = 2,460.78 : x
  2. Step 2: Convert to fraction form
    5,579.89/8,371.11 = 2,460.78/x
  3. Step 3: Cross multiply
    5,579.89x = 8,371.11 × 2,460.78
  4. Step 4: Simplify right side
    5,579.89x = 20,599,469.29
  5. Step 5: Solve for x
    x = 20,599,469.29/5,579.89
  6. Step 6: Final answer
    x = 3,691.74

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1.5x scale

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.