Home / 2,942.86-4,405.62-2,578.36

Finding the Fourth Proportional to 2,942.86, 4,405.62 and 2,578.36

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Solution

The fourth proportional to 2,942.86, 4,405.62 and 2,578.36 is: 3,859.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.86 : 4,405.62 = 2,578.36 : x
  2. Step 2: Convert to fraction form
    2,942.86/4,405.62 = 2,578.36/x
  3. Step 3: Cross multiply
    2,942.86x = 4,405.62 × 2,578.36
  4. Step 4: Simplify right side
    2,942.86x = 11,359,274.38
  5. Step 5: Solve for x
    x = 11,359,274.38/2,942.86
  6. Step 6: Final answer
    x = 3,859.94

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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.