Home / 3,108.86-4,662.32-1,945.96

Finding the Fourth Proportional to 3,108.86, 4,662.32 and 1,945.96

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Solution

The fourth proportional to 3,108.86, 4,662.32 and 1,945.96 is: 2,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.86 : 4,662.32 = 1,945.96 : x
  2. Step 2: Convert to fraction form
    3,108.86/4,662.32 = 1,945.96/x
  3. Step 3: Cross multiply
    3,108.86x = 4,662.32 × 1,945.96
  4. Step 4: Simplify right side
    3,108.86x = 9,072,688.23
  5. Step 5: Solve for x
    x = 9,072,688.23/3,108.86
  6. Step 6: Final answer
    x = 2,918.33

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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.