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Finding the Fourth Proportional to 3,895.67, 5,375.99 and 2,402.99

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Solution

The fourth proportional to 3,895.67, 5,375.99 and 2,402.99 is: 3,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.67 : 5,375.99 = 2,402.99 : x
  2. Step 2: Convert to fraction form
    3,895.67/5,375.99 = 2,402.99/x
  3. Step 3: Cross multiply
    3,895.67x = 5,375.99 × 2,402.99
  4. Step 4: Simplify right side
    3,895.67x = 12,918,438.20
  5. Step 5: Solve for x
    x = 12,918,438.20/3,895.67
  6. Step 6: Final answer
    x = 3,316.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.