Home / 3,131.76-4,321.44-1,734.52

Finding the Fourth Proportional to 3,131.76, 4,321.44 and 1,734.52

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Solution

The fourth proportional to 3,131.76, 4,321.44 and 1,734.52 is: 2,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.76 : 4,321.44 = 1,734.52 : x
  2. Step 2: Convert to fraction form
    3,131.76/4,321.44 = 1,734.52/x
  3. Step 3: Cross multiply
    3,131.76x = 4,321.44 × 1,734.52
  4. Step 4: Simplify right side
    3,131.76x = 7,495,624.11
  5. Step 5: Solve for x
    x = 7,495,624.11/3,131.76
  6. Step 6: Final answer
    x = 2,393.42

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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.