Home / 3,219.20-4,828.80-2,441.60

Finding the Fourth Proportional to 3,219.20, 4,828.80 and 2,441.60

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Solution

The fourth proportional to 3,219.20, 4,828.80 and 2,441.60 is: 3,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.20 : 4,828.80 = 2,441.60 : x
  2. Step 2: Convert to fraction form
    3,219.20/4,828.80 = 2,441.60/x
  3. Step 3: Cross multiply
    3,219.20x = 4,828.80 × 2,441.60
  4. Step 4: Simplify right side
    3,219.20x = 11,789,998.08
  5. Step 5: Solve for x
    x = 11,789,998.08/3,219.20
  6. Step 6: Final answer
    x = 3,662.40

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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.