Home / 3,131.26-4,321.25-1,734.01

Finding the Fourth Proportional to 3,131.26, 4,321.25 and 1,734.01

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Solution

The fourth proportional to 3,131.26, 4,321.25 and 1,734.01 is: 2,392.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.26 : 4,321.25 = 1,734.01 : x
  2. Step 2: Convert to fraction form
    3,131.26/4,321.25 = 1,734.01/x
  3. Step 3: Cross multiply
    3,131.26x = 4,321.25 × 1,734.01
  4. Step 4: Simplify right side
    3,131.26x = 7,493,077.74
  5. Step 5: Solve for x
    x = 7,493,077.74/3,131.26
  6. Step 6: Final answer
    x = 2,392.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.