Home / 5,216.19-7,198.46-2,977.89

Finding the Fourth Proportional to 5,216.19, 7,198.46 and 2,977.89

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Solution

The fourth proportional to 5,216.19, 7,198.46 and 2,977.89 is: 4,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.19 : 7,198.46 = 2,977.89 : x
  2. Step 2: Convert to fraction form
    5,216.19/7,198.46 = 2,977.89/x
  3. Step 3: Cross multiply
    5,216.19x = 7,198.46 × 2,977.89
  4. Step 4: Simplify right side
    5,216.19x = 21,436,222.05
  5. Step 5: Solve for x
    x = 21,436,222.05/5,216.19
  6. Step 6: Final answer
    x = 4,109.56

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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.