Home / 3,278.61-4,523.53-2,019.87

Finding the Fourth Proportional to 3,278.61, 4,523.53 and 2,019.87

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Solution

The fourth proportional to 3,278.61, 4,523.53 and 2,019.87 is: 2,786.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.61 : 4,523.53 = 2,019.87 : x
  2. Step 2: Convert to fraction form
    3,278.61/4,523.53 = 2,019.87/x
  3. Step 3: Cross multiply
    3,278.61x = 4,523.53 × 2,019.87
  4. Step 4: Simplify right side
    3,278.61x = 9,136,942.54
  5. Step 5: Solve for x
    x = 9,136,942.54/3,278.61
  6. Step 6: Final answer
    x = 2,786.83

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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.