Home / 2,222.78-3,333.39-1,237.09

Finding the Fourth Proportional to 2,222.78, 3,333.39 and 1,237.09

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Solution

The fourth proportional to 2,222.78, 3,333.39 and 1,237.09 is: 1,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.78 : 3,333.39 = 1,237.09 : x
  2. Step 2: Convert to fraction form
    2,222.78/3,333.39 = 1,237.09/x
  3. Step 3: Cross multiply
    2,222.78x = 3,333.39 × 1,237.09
  4. Step 4: Simplify right side
    2,222.78x = 4,123,703.44
  5. Step 5: Solve for x
    x = 4,123,703.44/2,222.78
  6. Step 6: Final answer
    x = 1,855.21

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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.