Home / 3,231.39-4,839.79-3,158.49

Finding the Fourth Proportional to 3,231.39, 4,839.79 and 3,158.49

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Solution

The fourth proportional to 3,231.39, 4,839.79 and 3,158.49 is: 4,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.39 : 4,839.79 = 3,158.49 : x
  2. Step 2: Convert to fraction form
    3,231.39/4,839.79 = 3,158.49/x
  3. Step 3: Cross multiply
    3,231.39x = 4,839.79 × 3,158.49
  4. Step 4: Simplify right side
    3,231.39x = 15,286,428.32
  5. Step 5: Solve for x
    x = 15,286,428.32/3,231.39
  6. Step 6: Final answer
    x = 4,730.60

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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.