Home / 3,433.20-5,145.48-2,662.80

Finding the Fourth Proportional to 3,433.20, 5,145.48 and 2,662.80

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Solution

The fourth proportional to 3,433.20, 5,145.48 and 2,662.80 is: 3,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.20 : 5,145.48 = 2,662.80 : x
  2. Step 2: Convert to fraction form
    3,433.20/5,145.48 = 2,662.80/x
  3. Step 3: Cross multiply
    3,433.20x = 5,145.48 × 2,662.80
  4. Step 4: Simplify right side
    3,433.20x = 13,701,384.14
  5. Step 5: Solve for x
    x = 13,701,384.14/3,433.20
  6. Step 6: Final answer
    x = 3,990.85

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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.