Home / 2,693.25-4,040.12-938.57

Finding the Fourth Proportional to 2,693.25, 4,040.12 and 938.57

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Solution

The fourth proportional to 2,693.25, 4,040.12 and 938.57 is: 1,407.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.25 : 4,040.12 = 938.57 : x
  2. Step 2: Convert to fraction form
    2,693.25/4,040.12 = 938.57/x
  3. Step 3: Cross multiply
    2,693.25x = 4,040.12 × 938.57
  4. Step 4: Simplify right side
    2,693.25x = 3,791,917.57
  5. Step 5: Solve for x
    x = 3,791,917.57/2,693.25
  6. Step 6: Final answer
    x = 1,407.93

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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.