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Finding the Fourth Proportional to 2,857.82, 3,950.44 and 2,741.54

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Solution

The fourth proportional to 2,857.82, 3,950.44 and 2,741.54 is: 3,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.82 : 3,950.44 = 2,741.54 : x
  2. Step 2: Convert to fraction form
    2,857.82/3,950.44 = 2,741.54/x
  3. Step 3: Cross multiply
    2,857.82x = 3,950.44 × 2,741.54
  4. Step 4: Simplify right side
    2,857.82x = 10,830,289.28
  5. Step 5: Solve for x
    x = 10,830,289.28/2,857.82
  6. Step 6: Final answer
    x = 3,789.70

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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.