Home / 5,216.28-7,198.36-2,858.37

Finding the Fourth Proportional to 5,216.28, 7,198.36 and 2,858.37

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Solution

The fourth proportional to 5,216.28, 7,198.36 and 2,858.37 is: 3,944.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.28 : 7,198.36 = 2,858.37 : x
  2. Step 2: Convert to fraction form
    5,216.28/7,198.36 = 2,858.37/x
  3. Step 3: Cross multiply
    5,216.28x = 7,198.36 × 2,858.37
  4. Step 4: Simplify right side
    5,216.28x = 20,575,576.27
  5. Step 5: Solve for x
    x = 20,575,576.27/5,216.28
  6. Step 6: Final answer
    x = 3,944.49

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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.