Home / 3,942.29-5,902.99-2,380.20

Finding the Fourth Proportional to 3,942.29, 5,902.99 and 2,380.20

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Solution

The fourth proportional to 3,942.29, 5,902.99 and 2,380.20 is: 3,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.29 : 5,902.99 = 2,380.20 : x
  2. Step 2: Convert to fraction form
    3,942.29/5,902.99 = 2,380.20/x
  3. Step 3: Cross multiply
    3,942.29x = 5,902.99 × 2,380.20
  4. Step 4: Simplify right side
    3,942.29x = 14,050,296.80
  5. Step 5: Solve for x
    x = 14,050,296.80/3,942.29
  6. Step 6: Final answer
    x = 3,563.99

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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.