Home / 3,904.39-5,387.79-2,310.96

Finding the Fourth Proportional to 3,904.39, 5,387.79 and 2,310.96

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Solution

The fourth proportional to 3,904.39, 5,387.79 and 2,310.96 is: 3,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.39 : 5,387.79 = 2,310.96 : x
  2. Step 2: Convert to fraction form
    3,904.39/5,387.79 = 2,310.96/x
  3. Step 3: Cross multiply
    3,904.39x = 5,387.79 × 2,310.96
  4. Step 4: Simplify right side
    3,904.39x = 12,450,968.45
  5. Step 5: Solve for x
    x = 12,450,968.45/3,904.39
  6. Step 6: Final answer
    x = 3,188.96

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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.