Home / 2,778.54-4,166.33-1,217.67

Finding the Fourth Proportional to 2,778.54, 4,166.33 and 1,217.67

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Solution

The fourth proportional to 2,778.54, 4,166.33 and 1,217.67 is: 1,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.54 : 4,166.33 = 1,217.67 : x
  2. Step 2: Convert to fraction form
    2,778.54/4,166.33 = 1,217.67/x
  3. Step 3: Cross multiply
    2,778.54x = 4,166.33 × 1,217.67
  4. Step 4: Simplify right side
    2,778.54x = 5,073,208.96
  5. Step 5: Solve for x
    x = 5,073,208.96/2,778.54
  6. Step 6: Final answer
    x = 1,825.85

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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.