Home / 2,729.89-4,092.81-1,268.11

Finding the Fourth Proportional to 2,729.89, 4,092.81 and 1,268.11

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Solution

The fourth proportional to 2,729.89, 4,092.81 and 1,268.11 is: 1,901.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.89 : 4,092.81 = 1,268.11 : x
  2. Step 2: Convert to fraction form
    2,729.89/4,092.81 = 1,268.11/x
  3. Step 3: Cross multiply
    2,729.89x = 4,092.81 × 1,268.11
  4. Step 4: Simplify right side
    2,729.89x = 5,190,133.29
  5. Step 5: Solve for x
    x = 5,190,133.29/2,729.89
  6. Step 6: Final answer
    x = 1,901.22

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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.