Home / 3,991.98-5,508.94-2,199.49

Finding the Fourth Proportional to 3,991.98, 5,508.94 and 2,199.49

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Solution

The fourth proportional to 3,991.98, 5,508.94 and 2,199.49 is: 3,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.98 : 5,508.94 = 2,199.49 : x
  2. Step 2: Convert to fraction form
    3,991.98/5,508.94 = 2,199.49/x
  3. Step 3: Cross multiply
    3,991.98x = 5,508.94 × 2,199.49
  4. Step 4: Simplify right side
    3,991.98x = 12,116,837.11
  5. Step 5: Solve for x
    x = 12,116,837.11/3,991.98
  6. Step 6: Final answer
    x = 3,035.29

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1.5x scale

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.