Home / 3,226.24-4,838.31-1,991.80

Finding the Fourth Proportional to 3,226.24, 4,838.31 and 1,991.80

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Solution

The fourth proportional to 3,226.24, 4,838.31 and 1,991.80 is: 2,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.24 : 4,838.31 = 1,991.80 : x
  2. Step 2: Convert to fraction form
    3,226.24/4,838.31 = 1,991.80/x
  3. Step 3: Cross multiply
    3,226.24x = 4,838.31 × 1,991.80
  4. Step 4: Simplify right side
    3,226.24x = 9,636,945.86
  5. Step 5: Solve for x
    x = 9,636,945.86/3,226.24
  6. Step 6: Final answer
    x = 2,987.05

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1.5x scale

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.