Home / 3,131.13-4,321.10-1,733.88

Finding the Fourth Proportional to 3,131.13, 4,321.10 and 1,733.88

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Solution

The fourth proportional to 3,131.13, 4,321.10 and 1,733.88 is: 2,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.13 : 4,321.10 = 1,733.88 : x
  2. Step 2: Convert to fraction form
    3,131.13/4,321.10 = 1,733.88/x
  3. Step 3: Cross multiply
    3,131.13x = 4,321.10 × 1,733.88
  4. Step 4: Simplify right side
    3,131.13x = 7,492,268.87
  5. Step 5: Solve for x
    x = 7,492,268.87/3,131.13
  6. Step 6: Final answer
    x = 2,392.83

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