Home / 3,610.77-5,405.82-2,690.61

Finding the Fourth Proportional to 3,610.77, 5,405.82 and 2,690.61

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Solution

The fourth proportional to 3,610.77, 5,405.82 and 2,690.61 is: 4,028.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.77 : 5,405.82 = 2,690.61 : x
  2. Step 2: Convert to fraction form
    3,610.77/5,405.82 = 2,690.61/x
  3. Step 3: Cross multiply
    3,610.77x = 5,405.82 × 2,690.61
  4. Step 4: Simplify right side
    3,610.77x = 14,544,953.35
  5. Step 5: Solve for x
    x = 14,544,953.35/3,610.77
  6. Step 6: Final answer
    x = 4,028.21

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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.