Home / 3,519.75-5,280.79-1,180.86

Finding the Fourth Proportional to 3,519.75, 5,280.79 and 1,180.86

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Solution

The fourth proportional to 3,519.75, 5,280.79 and 1,180.86 is: 1,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.75 : 5,280.79 = 1,180.86 : x
  2. Step 2: Convert to fraction form
    3,519.75/5,280.79 = 1,180.86/x
  3. Step 3: Cross multiply
    3,519.75x = 5,280.79 × 1,180.86
  4. Step 4: Simplify right side
    3,519.75x = 6,235,841.37
  5. Step 5: Solve for x
    x = 6,235,841.37/3,519.75
  6. Step 6: Final answer
    x = 1,771.67

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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.