Home / 4,309.86-6,464.85-1,231.86

Finding the Fourth Proportional to 4,309.86, 6,464.85 and 1,231.86

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Solution

The fourth proportional to 4,309.86, 6,464.85 and 1,231.86 is: 1,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.86 : 6,464.85 = 1,231.86 : x
  2. Step 2: Convert to fraction form
    4,309.86/6,464.85 = 1,231.86/x
  3. Step 3: Cross multiply
    4,309.86x = 6,464.85 × 1,231.86
  4. Step 4: Simplify right side
    4,309.86x = 7,963,790.12
  5. Step 5: Solve for x
    x = 7,963,790.12/4,309.86
  6. Step 6: Final answer
    x = 1,847.81

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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.