Home / 3,181.71-4,768.86-1,206.09

Finding the Fourth Proportional to 3,181.71, 4,768.86 and 1,206.09

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Solution

The fourth proportional to 3,181.71, 4,768.86 and 1,206.09 is: 1,807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.71 : 4,768.86 = 1,206.09 : x
  2. Step 2: Convert to fraction form
    3,181.71/4,768.86 = 1,206.09/x
  3. Step 3: Cross multiply
    3,181.71x = 4,768.86 × 1,206.09
  4. Step 4: Simplify right side
    3,181.71x = 5,751,674.36
  5. Step 5: Solve for x
    x = 5,751,674.36/3,181.71
  6. Step 6: Final answer
    x = 1,807.73

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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.