Home / 3,845.82-5,307.14-2,167.22

Finding the Fourth Proportional to 3,845.82, 5,307.14 and 2,167.22

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Solution

The fourth proportional to 3,845.82, 5,307.14 and 2,167.22 is: 2,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.82 : 5,307.14 = 2,167.22 : x
  2. Step 2: Convert to fraction form
    3,845.82/5,307.14 = 2,167.22/x
  3. Step 3: Cross multiply
    3,845.82x = 5,307.14 × 2,167.22
  4. Step 4: Simplify right side
    3,845.82x = 11,501,739.95
  5. Step 5: Solve for x
    x = 11,501,739.95/3,845.82
  6. Step 6: Final answer
    x = 2,990.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.