Home / 3,224.40-4,836.72-1,991.04

Finding the Fourth Proportional to 3,224.40, 4,836.72 and 1,991.04

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Solution

The fourth proportional to 3,224.40, 4,836.72 and 1,991.04 is: 2,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,224.40 : 4,836.72 = 1,991.04 : x
  2. Step 2: Convert to fraction form
    3,224.40/4,836.72 = 1,991.04/x
  3. Step 3: Cross multiply
    3,224.40x = 4,836.72 × 1,991.04
  4. Step 4: Simplify right side
    3,224.40x = 9,630,102.99
  5. Step 5: Solve for x
    x = 9,630,102.99/3,224.40
  6. Step 6: Final answer
    x = 2,986.63

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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.