Home / 3,184.36-4,392.66-2,005

Finding the Fourth Proportional to 3,184.36, 4,392.66 and 2,005

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Solution

The fourth proportional to 3,184.36, 4,392.66 and 2,005 is: 2,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.36 : 4,392.66 = 2,005 : x
  2. Step 2: Convert to fraction form
    3,184.36/4,392.66 = 2,005/x
  3. Step 3: Cross multiply
    3,184.36x = 4,392.66 × 2,005
  4. Step 4: Simplify right side
    3,184.36x = 8,807,283.30
  5. Step 5: Solve for x
    x = 8,807,283.30/3,184.36
  6. Step 6: Final answer
    x = 2,765.79

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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.