Home / 5,216.28-7,198.50-2,858.43

Finding the Fourth Proportional to 5,216.28, 7,198.50 and 2,858.43

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Solution

The fourth proportional to 5,216.28, 7,198.50 and 2,858.43 is: 3,944.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.28 : 7,198.50 = 2,858.43 : x
  2. Step 2: Convert to fraction form
    5,216.28/7,198.50 = 2,858.43/x
  3. Step 3: Cross multiply
    5,216.28x = 7,198.50 × 2,858.43
  4. Step 4: Simplify right side
    5,216.28x = 20,576,408.36
  5. Step 5: Solve for x
    x = 20,576,408.36/5,216.28
  6. Step 6: Final answer
    x = 3,944.65

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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.