Home / 3,821.75-5,273.76-2,143.14

Finding the Fourth Proportional to 3,821.75, 5,273.76 and 2,143.14

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Solution

The fourth proportional to 3,821.75, 5,273.76 and 2,143.14 is: 2,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.75 : 5,273.76 = 2,143.14 : x
  2. Step 2: Convert to fraction form
    3,821.75/5,273.76 = 2,143.14/x
  3. Step 3: Cross multiply
    3,821.75x = 5,273.76 × 2,143.14
  4. Step 4: Simplify right side
    3,821.75x = 11,302,406.01
  5. Step 5: Solve for x
    x = 11,302,406.01/3,821.75
  6. Step 6: Final answer
    x = 2,957.39

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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.