Home / 3,842.75-5,302.97-2,164.19

Finding the Fourth Proportional to 3,842.75, 5,302.97 and 2,164.19

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Solution

The fourth proportional to 3,842.75, 5,302.97 and 2,164.19 is: 2,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.75 : 5,302.97 = 2,164.19 : x
  2. Step 2: Convert to fraction form
    3,842.75/5,302.97 = 2,164.19/x
  3. Step 3: Cross multiply
    3,842.75x = 5,302.97 × 2,164.19
  4. Step 4: Simplify right side
    3,842.75x = 11,476,605.42
  5. Step 5: Solve for x
    x = 11,476,605.42/3,842.75
  6. Step 6: Final answer
    x = 2,986.56

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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.