Home / 5,394.20-8,078.32-3,657.56

Finding the Fourth Proportional to 5,394.20, 8,078.32 and 3,657.56

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Solution

The fourth proportional to 5,394.20, 8,078.32 and 3,657.56 is: 5,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.20 : 8,078.32 = 3,657.56 : x
  2. Step 2: Convert to fraction form
    5,394.20/8,078.32 = 3,657.56/x
  3. Step 3: Cross multiply
    5,394.20x = 8,078.32 × 3,657.56
  4. Step 4: Simplify right side
    5,394.20x = 29,546,940.10
  5. Step 5: Solve for x
    x = 29,546,940.10/5,394.20
  6. Step 6: Final answer
    x = 5,477.54

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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.