Home / 2,581.11-3,868.41-1,118.67

Finding the Fourth Proportional to 2,581.11, 3,868.41 and 1,118.67

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Solution

The fourth proportional to 2,581.11, 3,868.41 and 1,118.67 is: 1,676.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.11 : 3,868.41 = 1,118.67 : x
  2. Step 2: Convert to fraction form
    2,581.11/3,868.41 = 1,118.67/x
  3. Step 3: Cross multiply
    2,581.11x = 3,868.41 × 1,118.67
  4. Step 4: Simplify right side
    2,581.11x = 4,327,474.21
  5. Step 5: Solve for x
    x = 4,327,474.21/2,581.11
  6. Step 6: Final answer
    x = 1,676.59

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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.