Home / 2,768.26-3,823.50-2,021.08

Finding the Fourth Proportional to 2,768.26, 3,823.50 and 2,021.08

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Solution

The fourth proportional to 2,768.26, 3,823.50 and 2,021.08 is: 2,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.26 : 3,823.50 = 2,021.08 : x
  2. Step 2: Convert to fraction form
    2,768.26/3,823.50 = 2,021.08/x
  3. Step 3: Cross multiply
    2,768.26x = 3,823.50 × 2,021.08
  4. Step 4: Simplify right side
    2,768.26x = 7,727,599.38
  5. Step 5: Solve for x
    x = 7,727,599.38/2,768.26
  6. Step 6: Final answer
    x = 2,791.50

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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.