Home / 2,222.10-3,334.14-762.30

Finding the Fourth Proportional to 2,222.10, 3,334.14 and 762.30

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Solution

The fourth proportional to 2,222.10, 3,334.14 and 762.30 is: 1,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.10 : 3,334.14 = 762.30 : x
  2. Step 2: Convert to fraction form
    2,222.10/3,334.14 = 762.30/x
  3. Step 3: Cross multiply
    2,222.10x = 3,334.14 × 762.30
  4. Step 4: Simplify right side
    2,222.10x = 2,541,614.92
  5. Step 5: Solve for x
    x = 2,541,614.92/2,222.10
  6. Step 6: Final answer
    x = 1,143.79

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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.