Home / 2,135.73-3,199.65-1,791.28

Finding the Fourth Proportional to 2,135.73, 3,199.65 and 1,791.28

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Solution

The fourth proportional to 2,135.73, 3,199.65 and 1,791.28 is: 2,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.73 : 3,199.65 = 1,791.28 : x
  2. Step 2: Convert to fraction form
    2,135.73/3,199.65 = 1,791.28/x
  3. Step 3: Cross multiply
    2,135.73x = 3,199.65 × 1,791.28
  4. Step 4: Simplify right side
    2,135.73x = 5,731,466.33
  5. Step 5: Solve for x
    x = 5,731,466.33/2,135.73
  6. Step 6: Final answer
    x = 2,683.61

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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.