Home / 3,392.69-5,087.88-1,391.36

Finding the Fourth Proportional to 3,392.69, 5,087.88 and 1,391.36

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Solution

The fourth proportional to 3,392.69, 5,087.88 and 1,391.36 is: 2,086.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.69 : 5,087.88 = 1,391.36 : x
  2. Step 2: Convert to fraction form
    3,392.69/5,087.88 = 1,391.36/x
  3. Step 3: Cross multiply
    3,392.69x = 5,087.88 × 1,391.36
  4. Step 4: Simplify right side
    3,392.69x = 7,079,047.28
  5. Step 5: Solve for x
    x = 7,079,047.28/3,392.69
  6. Step 6: Final answer
    x = 2,086.56

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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.