Home / 4,078.86-6,119.46-1,305.96

Finding the Fourth Proportional to 4,078.86, 6,119.46 and 1,305.96

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Solution

The fourth proportional to 4,078.86, 6,119.46 and 1,305.96 is: 1,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.86 : 6,119.46 = 1,305.96 : x
  2. Step 2: Convert to fraction form
    4,078.86/6,119.46 = 1,305.96/x
  3. Step 3: Cross multiply
    4,078.86x = 6,119.46 × 1,305.96
  4. Step 4: Simplify right side
    4,078.86x = 7,991,769.98
  5. Step 5: Solve for x
    x = 7,991,769.98/4,078.86
  6. Step 6: Final answer
    x = 1,959.31

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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.