Home / 7,213.20-10,820.43-2,019.09

Finding the Fourth Proportional to 7,213.20, 10,820.43 and 2,019.09

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Solution

The fourth proportional to 7,213.20, 10,820.43 and 2,019.09 is: 3,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.20 : 10,820.43 = 2,019.09 : x
  2. Step 2: Convert to fraction form
    7,213.20/10,820.43 = 2,019.09/x
  3. Step 3: Cross multiply
    7,213.20x = 10,820.43 × 2,019.09
  4. Step 4: Simplify right side
    7,213.20x = 21,847,422.01
  5. Step 5: Solve for x
    x = 21,847,422.01/7,213.20
  6. Step 6: Final answer
    x = 3,028.81

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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.