Home / 5,180.31-7,762.91-2,579.67

Finding the Fourth Proportional to 5,180.31, 7,762.91 and 2,579.67

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Solution

The fourth proportional to 5,180.31, 7,762.91 and 2,579.67 is: 3,865.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.31 : 7,762.91 = 2,579.67 : x
  2. Step 2: Convert to fraction form
    5,180.31/7,762.91 = 2,579.67/x
  3. Step 3: Cross multiply
    5,180.31x = 7,762.91 × 2,579.67
  4. Step 4: Simplify right side
    5,180.31x = 20,025,733.14
  5. Step 5: Solve for x
    x = 20,025,733.14/5,180.31
  6. Step 6: Final answer
    x = 3,865.74

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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.