Home / 3,998.09-5,511.44-2,581.67

Finding the Fourth Proportional to 3,998.09, 5,511.44 and 2,581.67

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Solution

The fourth proportional to 3,998.09, 5,511.44 and 2,581.67 is: 3,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.09 : 5,511.44 = 2,581.67 : x
  2. Step 2: Convert to fraction form
    3,998.09/5,511.44 = 2,581.67/x
  3. Step 3: Cross multiply
    3,998.09x = 5,511.44 × 2,581.67
  4. Step 4: Simplify right side
    3,998.09x = 14,228,719.30
  5. Step 5: Solve for x
    x = 14,228,719.30/3,998.09
  6. Step 6: Final answer
    x = 3,558.88

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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.