Home / 2,021.92-2,791.64-1,548.98

Finding the Fourth Proportional to 2,021.92, 2,791.64 and 1,548.98

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Solution

The fourth proportional to 2,021.92, 2,791.64 and 1,548.98 is: 2,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.92 : 2,791.64 = 1,548.98 : x
  2. Step 2: Convert to fraction form
    2,021.92/2,791.64 = 1,548.98/x
  3. Step 3: Cross multiply
    2,021.92x = 2,791.64 × 1,548.98
  4. Step 4: Simplify right side
    2,021.92x = 4,324,201.90
  5. Step 5: Solve for x
    x = 4,324,201.90/2,021.92
  6. Step 6: Final answer
    x = 2,138.66

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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.