Home / 5,131.29-7,081.16-2,773.43

Finding the Fourth Proportional to 5,131.29, 7,081.16 and 2,773.43

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Solution

The fourth proportional to 5,131.29, 7,081.16 and 2,773.43 is: 3,827.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.29 : 7,081.16 = 2,773.43 : x
  2. Step 2: Convert to fraction form
    5,131.29/7,081.16 = 2,773.43/x
  3. Step 3: Cross multiply
    5,131.29x = 7,081.16 × 2,773.43
  4. Step 4: Simplify right side
    5,131.29x = 19,639,101.58
  5. Step 5: Solve for x
    x = 19,639,101.58/5,131.29
  6. Step 6: Final answer
    x = 3,827.32

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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.