Home / 3,161.25-4,739.13-1,698.69

Finding the Fourth Proportional to 3,161.25, 4,739.13 and 1,698.69

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Solution

The fourth proportional to 3,161.25, 4,739.13 and 1,698.69 is: 2,546.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.25 : 4,739.13 = 1,698.69 : x
  2. Step 2: Convert to fraction form
    3,161.25/4,739.13 = 1,698.69/x
  3. Step 3: Cross multiply
    3,161.25x = 4,739.13 × 1,698.69
  4. Step 4: Simplify right side
    3,161.25x = 8,050,289.04
  5. Step 5: Solve for x
    x = 8,050,289.04/3,161.25
  6. Step 6: Final answer
    x = 2,546.56

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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.