Home / 1,254.19-1,729.37-938.44

Finding the Fourth Proportional to 1,254.19, 1,729.37 and 938.44

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Solution

The fourth proportional to 1,254.19, 1,729.37 and 938.44 is: 1,293.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.19 : 1,729.37 = 938.44 : x
  2. Step 2: Convert to fraction form
    1,254.19/1,729.37 = 938.44/x
  3. Step 3: Cross multiply
    1,254.19x = 1,729.37 × 938.44
  4. Step 4: Simplify right side
    1,254.19x = 1,622,900.97
  5. Step 5: Solve for x
    x = 1,622,900.97/1,254.19
  6. Step 6: Final answer
    x = 1,293.99

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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.