Home / 5,216.38-7,198.75-2,858.68

Finding the Fourth Proportional to 5,216.38, 7,198.75 and 2,858.68

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Solution

The fourth proportional to 5,216.38, 7,198.75 and 2,858.68 is: 3,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.38 : 7,198.75 = 2,858.68 : x
  2. Step 2: Convert to fraction form
    5,216.38/7,198.75 = 2,858.68/x
  3. Step 3: Cross multiply
    5,216.38x = 7,198.75 × 2,858.68
  4. Step 4: Simplify right side
    5,216.38x = 20,578,922.65
  5. Step 5: Solve for x
    x = 20,578,922.65/5,216.38
  6. Step 6: Final answer
    x = 3,945.06

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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.