Home / 3,129.16-4,694.40-1,181.32

Finding the Fourth Proportional to 3,129.16, 4,694.40 and 1,181.32

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Solution

The fourth proportional to 3,129.16, 4,694.40 and 1,181.32 is: 1,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.16 : 4,694.40 = 1,181.32 : x
  2. Step 2: Convert to fraction form
    3,129.16/4,694.40 = 1,181.32/x
  3. Step 3: Cross multiply
    3,129.16x = 4,694.40 × 1,181.32
  4. Step 4: Simplify right side
    3,129.16x = 5,545,588.61
  5. Step 5: Solve for x
    x = 5,545,588.61/3,129.16
  6. Step 6: Final answer
    x = 1,772.23

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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.