Home / 6,138.09-8,469.56-3,619.86

Finding the Fourth Proportional to 6,138.09, 8,469.56 and 3,619.86

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Solution

The fourth proportional to 6,138.09, 8,469.56 and 3,619.86 is: 4,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.09 : 8,469.56 = 3,619.86 : x
  2. Step 2: Convert to fraction form
    6,138.09/8,469.56 = 3,619.86/x
  3. Step 3: Cross multiply
    6,138.09x = 8,469.56 × 3,619.86
  4. Step 4: Simplify right side
    6,138.09x = 30,658,603.36
  5. Step 5: Solve for x
    x = 30,658,603.36/6,138.09
  6. Step 6: Final answer
    x = 4,994.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.