Home / 5,114.03-7,680.77-3,179.75

Finding the Fourth Proportional to 5,114.03, 7,680.77 and 3,179.75

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Solution

The fourth proportional to 5,114.03, 7,680.77 and 3,179.75 is: 4,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.03 : 7,680.77 = 3,179.75 : x
  2. Step 2: Convert to fraction form
    5,114.03/7,680.77 = 3,179.75/x
  3. Step 3: Cross multiply
    5,114.03x = 7,680.77 × 3,179.75
  4. Step 4: Simplify right side
    5,114.03x = 24,422,928.41
  5. Step 5: Solve for x
    x = 24,422,928.41/5,114.03
  6. Step 6: Final answer
    x = 4,775.67

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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.