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Finding the Fourth Proportional to 3,900.39, 5,839.05 and 2,509.62

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Solution

The fourth proportional to 3,900.39, 5,839.05 and 2,509.62 is: 3,757.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.39 : 5,839.05 = 2,509.62 : x
  2. Step 2: Convert to fraction form
    3,900.39/5,839.05 = 2,509.62/x
  3. Step 3: Cross multiply
    3,900.39x = 5,839.05 × 2,509.62
  4. Step 4: Simplify right side
    3,900.39x = 14,653,806.07
  5. Step 5: Solve for x
    x = 14,653,806.07/3,900.39
  6. Step 6: Final answer
    x = 3,757.01

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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.