Home / 3,990.46-5,982.68-2,754.34

Finding the Fourth Proportional to 3,990.46, 5,982.68 and 2,754.34

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Solution

The fourth proportional to 3,990.46, 5,982.68 and 2,754.34 is: 4,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.46 : 5,982.68 = 2,754.34 : x
  2. Step 2: Convert to fraction form
    3,990.46/5,982.68 = 2,754.34/x
  3. Step 3: Cross multiply
    3,990.46x = 5,982.68 × 2,754.34
  4. Step 4: Simplify right side
    3,990.46x = 16,478,334.83
  5. Step 5: Solve for x
    x = 16,478,334.83/3,990.46
  6. Step 6: Final answer
    x = 4,129.43

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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.