Home / 3,298.80-4,942.20-1,563.60

Finding the Fourth Proportional to 3,298.80, 4,942.20 and 1,563.60

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Solution

The fourth proportional to 3,298.80, 4,942.20 and 1,563.60 is: 2,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.80 : 4,942.20 = 1,563.60 : x
  2. Step 2: Convert to fraction form
    3,298.80/4,942.20 = 1,563.60/x
  3. Step 3: Cross multiply
    3,298.80x = 4,942.20 × 1,563.60
  4. Step 4: Simplify right side
    3,298.80x = 7,727,623.92
  5. Step 5: Solve for x
    x = 7,727,623.92/3,298.80
  6. Step 6: Final answer
    x = 2,342.56

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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.