Home / 5,218.11-7,825.32-1,519.34

Finding the Fourth Proportional to 5,218.11, 7,825.32 and 1,519.34

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Solution

The fourth proportional to 5,218.11, 7,825.32 and 1,519.34 is: 2,278.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.11 : 7,825.32 = 1,519.34 : x
  2. Step 2: Convert to fraction form
    5,218.11/7,825.32 = 1,519.34/x
  3. Step 3: Cross multiply
    5,218.11x = 7,825.32 × 1,519.34
  4. Step 4: Simplify right side
    5,218.11x = 11,889,282.56
  5. Step 5: Solve for x
    x = 11,889,282.56/5,218.11
  6. Step 6: Final answer
    x = 2,278.47

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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.