Home / 3,181.79-4,772.82-1,207.22

Finding the Fourth Proportional to 3,181.79, 4,772.82 and 1,207.22

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Solution

The fourth proportional to 3,181.79, 4,772.82 and 1,207.22 is: 1,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.79 : 4,772.82 = 1,207.22 : x
  2. Step 2: Convert to fraction form
    3,181.79/4,772.82 = 1,207.22/x
  3. Step 3: Cross multiply
    3,181.79x = 4,772.82 × 1,207.22
  4. Step 4: Simplify right side
    3,181.79x = 5,761,843.76
  5. Step 5: Solve for x
    x = 5,761,843.76/3,181.79
  6. Step 6: Final answer
    x = 1,810.88

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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.