Home / 3,161.61-4,365.09-1,967.85

Finding the Fourth Proportional to 3,161.61, 4,365.09 and 1,967.85

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Solution

The fourth proportional to 3,161.61, 4,365.09 and 1,967.85 is: 2,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.61 : 4,365.09 = 1,967.85 : x
  2. Step 2: Convert to fraction form
    3,161.61/4,365.09 = 1,967.85/x
  3. Step 3: Cross multiply
    3,161.61x = 4,365.09 × 1,967.85
  4. Step 4: Simplify right side
    3,161.61x = 8,589,842.36
  5. Step 5: Solve for x
    x = 8,589,842.36/3,161.61
  6. Step 6: Final answer
    x = 2,716.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.