Home / 5,150.76-7,720.19-2,371.61

Finding the Fourth Proportional to 5,150.76, 7,720.19 and 2,371.61

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Solution

The fourth proportional to 5,150.76, 7,720.19 and 2,371.61 is: 3,554.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.76 : 7,720.19 = 2,371.61 : x
  2. Step 2: Convert to fraction form
    5,150.76/7,720.19 = 2,371.61/x
  3. Step 3: Cross multiply
    5,150.76x = 7,720.19 × 2,371.61
  4. Step 4: Simplify right side
    5,150.76x = 18,309,241.20
  5. Step 5: Solve for x
    x = 18,309,241.20/5,150.76
  6. Step 6: Final answer
    x = 3,554.67

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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.