Home / 2,666.22-3,999.30-2,662.38

Finding the Fourth Proportional to 2,666.22, 3,999.30 and 2,662.38

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Solution

The fourth proportional to 2,666.22, 3,999.30 and 2,662.38 is: 3,993.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.22 : 3,999.30 = 2,662.38 : x
  2. Step 2: Convert to fraction form
    2,666.22/3,999.30 = 2,662.38/x
  3. Step 3: Cross multiply
    2,666.22x = 3,999.30 × 2,662.38
  4. Step 4: Simplify right side
    2,666.22x = 10,647,656.33
  5. Step 5: Solve for x
    x = 10,647,656.33/2,666.22
  6. Step 6: Final answer
    x = 3,993.54

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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.