Home / 2,623.52-3,616.26-1,991.99

Finding the Fourth Proportional to 2,623.52, 3,616.26 and 1,991.99

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Solution

The fourth proportional to 2,623.52, 3,616.26 and 1,991.99 is: 2,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.52 : 3,616.26 = 1,991.99 : x
  2. Step 2: Convert to fraction form
    2,623.52/3,616.26 = 1,991.99/x
  3. Step 3: Cross multiply
    2,623.52x = 3,616.26 × 1,991.99
  4. Step 4: Simplify right side
    2,623.52x = 7,203,553.76
  5. Step 5: Solve for x
    x = 7,203,553.76/2,623.52
  6. Step 6: Final answer
    x = 2,745.76

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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.