Home / 2,857.27-3,944.33-1,678.44

Finding the Fourth Proportional to 2,857.27, 3,944.33 and 1,678.44

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Solution

The fourth proportional to 2,857.27, 3,944.33 and 1,678.44 is: 2,317.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.27 : 3,944.33 = 1,678.44 : x
  2. Step 2: Convert to fraction form
    2,857.27/3,944.33 = 1,678.44/x
  3. Step 3: Cross multiply
    2,857.27x = 3,944.33 × 1,678.44
  4. Step 4: Simplify right side
    2,857.27x = 6,620,293.13
  5. Step 5: Solve for x
    x = 6,620,293.13/2,857.27
  6. Step 6: Final answer
    x = 2,317.00

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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.