Home / 3,874.32-5,811.44-2,638.67

Finding the Fourth Proportional to 3,874.32, 5,811.44 and 2,638.67

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Solution

The fourth proportional to 3,874.32, 5,811.44 and 2,638.67 is: 3,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.32 : 5,811.44 = 2,638.67 : x
  2. Step 2: Convert to fraction form
    3,874.32/5,811.44 = 2,638.67/x
  3. Step 3: Cross multiply
    3,874.32x = 5,811.44 × 2,638.67
  4. Step 4: Simplify right side
    3,874.32x = 15,334,430.13
  5. Step 5: Solve for x
    x = 15,334,430.13/3,874.32
  6. Step 6: Final answer
    x = 3,957.97

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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.