Home / 3,107.09-4,659.15-1,131.32

Finding the Fourth Proportional to 3,107.09, 4,659.15 and 1,131.32

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Solution

The fourth proportional to 3,107.09, 4,659.15 and 1,131.32 is: 1,696.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.09 : 4,659.15 = 1,131.32 : x
  2. Step 2: Convert to fraction form
    3,107.09/4,659.15 = 1,131.32/x
  3. Step 3: Cross multiply
    3,107.09x = 4,659.15 × 1,131.32
  4. Step 4: Simplify right side
    3,107.09x = 5,270,970.52
  5. Step 5: Solve for x
    x = 5,270,970.52/3,107.09
  6. Step 6: Final answer
    x = 1,696.44

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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.