Home / 2,857.82-4,279.21-2,299.56

Finding the Fourth Proportional to 2,857.82, 4,279.21 and 2,299.56

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Solution

The fourth proportional to 2,857.82, 4,279.21 and 2,299.56 is: 3,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.82 : 4,279.21 = 2,299.56 : x
  2. Step 2: Convert to fraction form
    2,857.82/4,279.21 = 2,299.56/x
  3. Step 3: Cross multiply
    2,857.82x = 4,279.21 × 2,299.56
  4. Step 4: Simplify right side
    2,857.82x = 9,840,291.29
  5. Step 5: Solve for x
    x = 9,840,291.29/2,857.82
  6. Step 6: Final answer
    x = 3,443.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.