Home / 2,842.09-3,921.82-1,646.83

Finding the Fourth Proportional to 2,842.09, 3,921.82 and 1,646.83

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Solution

The fourth proportional to 2,842.09, 3,921.82 and 1,646.83 is: 2,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.09 : 3,921.82 = 1,646.83 : x
  2. Step 2: Convert to fraction form
    2,842.09/3,921.82 = 1,646.83/x
  3. Step 3: Cross multiply
    2,842.09x = 3,921.82 × 1,646.83
  4. Step 4: Simplify right side
    2,842.09x = 6,458,571.62
  5. Step 5: Solve for x
    x = 6,458,571.62/2,842.09
  6. Step 6: Final answer
    x = 2,272.47

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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.