Home / 2,942.42-4,416.70-2,163.30

Finding the Fourth Proportional to 2,942.42, 4,416.70 and 2,163.30

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Solution

The fourth proportional to 2,942.42, 4,416.70 and 2,163.30 is: 3,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.42 : 4,416.70 = 2,163.30 : x
  2. Step 2: Convert to fraction form
    2,942.42/4,416.70 = 2,163.30/x
  3. Step 3: Cross multiply
    2,942.42x = 4,416.70 × 2,163.30
  4. Step 4: Simplify right side
    2,942.42x = 9,554,647.70
  5. Step 5: Solve for x
    x = 9,554,647.70/2,942.42
  6. Step 6: Final answer
    x = 3,247.21

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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.