Home / 3,129.25-4,695.32-1,181.29

Finding the Fourth Proportional to 3,129.25, 4,695.32 and 1,181.29

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Solution

The fourth proportional to 3,129.25, 4,695.32 and 1,181.29 is: 1,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.25 : 4,695.32 = 1,181.29 : x
  2. Step 2: Convert to fraction form
    3,129.25/4,695.32 = 1,181.29/x
  3. Step 3: Cross multiply
    3,129.25x = 4,695.32 × 1,181.29
  4. Step 4: Simplify right side
    3,129.25x = 5,546,534.56
  5. Step 5: Solve for x
    x = 5,546,534.56/3,129.25
  6. Step 6: Final answer
    x = 1,772.48

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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.