Home / 5,131.15-7,696.72-3,962.86

Finding the Fourth Proportional to 5,131.15, 7,696.72 and 3,962.86

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Solution

The fourth proportional to 5,131.15, 7,696.72 and 3,962.86 is: 5,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.15 : 7,696.72 = 3,962.86 : x
  2. Step 2: Convert to fraction form
    5,131.15/7,696.72 = 3,962.86/x
  3. Step 3: Cross multiply
    5,131.15x = 7,696.72 × 3,962.86
  4. Step 4: Simplify right side
    5,131.15x = 30,500,993.30
  5. Step 5: Solve for x
    x = 30,500,993.30/5,131.15
  6. Step 6: Final answer
    x = 5,944.28

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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.