Home / 3,676.78-5,518.82-2,991.52

Finding the Fourth Proportional to 3,676.78, 5,518.82 and 2,991.52

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Solution

The fourth proportional to 3,676.78, 5,518.82 and 2,991.52 is: 4,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.78 : 5,518.82 = 2,991.52 : x
  2. Step 2: Convert to fraction form
    3,676.78/5,518.82 = 2,991.52/x
  3. Step 3: Cross multiply
    3,676.78x = 5,518.82 × 2,991.52
  4. Step 4: Simplify right side
    3,676.78x = 16,509,660.41
  5. Step 5: Solve for x
    x = 16,509,660.41/3,676.78
  6. Step 6: Final answer
    x = 4,490.25

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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.