Home / 5,309.15-7,958.25-2,021.36

Finding the Fourth Proportional to 5,309.15, 7,958.25 and 2,021.36

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Solution

The fourth proportional to 5,309.15, 7,958.25 and 2,021.36 is: 3,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.15 : 7,958.25 = 2,021.36 : x
  2. Step 2: Convert to fraction form
    5,309.15/7,958.25 = 2,021.36/x
  3. Step 3: Cross multiply
    5,309.15x = 7,958.25 × 2,021.36
  4. Step 4: Simplify right side
    5,309.15x = 16,086,448.43
  5. Step 5: Solve for x
    x = 16,086,448.43/5,309.15
  6. Step 6: Final answer
    x = 3,029.95

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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.