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Finding the Fourth Proportional to 3,718.88, 5,579.24 and 2,625.38

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Solution

The fourth proportional to 3,718.88, 5,579.24 and 2,625.38 is: 3,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.88 : 5,579.24 = 2,625.38 : x
  2. Step 2: Convert to fraction form
    3,718.88/5,579.24 = 2,625.38/x
  3. Step 3: Cross multiply
    3,718.88x = 5,579.24 × 2,625.38
  4. Step 4: Simplify right side
    3,718.88x = 14,647,625.11
  5. Step 5: Solve for x
    x = 14,647,625.11/3,718.88
  6. Step 6: Final answer
    x = 3,938.72

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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.