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Finding the Fourth Proportional to 2,633.33, 3,950 and 785.09

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Solution

The fourth proportional to 2,633.33, 3,950 and 785.09 is: 1,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,633.33 : 3,950 = 785.09 : x
  2. Step 2: Convert to fraction form
    2,633.33/3,950 = 785.09/x
  3. Step 3: Cross multiply
    2,633.33x = 3,950 × 785.09
  4. Step 4: Simplify right side
    2,633.33x = 3,101,105.50
  5. Step 5: Solve for x
    x = 3,101,105.50/2,633.33
  6. Step 6: Final answer
    x = 1,177.64

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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.