Home / 3,991.13-5,511.24-2,501.61

Finding the Fourth Proportional to 3,991.13, 5,511.24 and 2,501.61

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Solution

The fourth proportional to 3,991.13, 5,511.24 and 2,501.61 is: 3,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.13 : 5,511.24 = 2,501.61 : x
  2. Step 2: Convert to fraction form
    3,991.13/5,511.24 = 2,501.61/x
  3. Step 3: Cross multiply
    3,991.13x = 5,511.24 × 2,501.61
  4. Step 4: Simplify right side
    3,991.13x = 13,786,973.10
  5. Step 5: Solve for x
    x = 13,786,973.10/3,991.13
  6. Step 6: Final answer
    x = 3,454.41

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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.