Home / 2,816.43-4,224.87-2,124.42

Finding the Fourth Proportional to 2,816.43, 4,224.87 and 2,124.42

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Solution

The fourth proportional to 2,816.43, 4,224.87 and 2,124.42 is: 3,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.43 : 4,224.87 = 2,124.42 : x
  2. Step 2: Convert to fraction form
    2,816.43/4,224.87 = 2,124.42/x
  3. Step 3: Cross multiply
    2,816.43x = 4,224.87 × 2,124.42
  4. Step 4: Simplify right side
    2,816.43x = 8,975,398.33
  5. Step 5: Solve for x
    x = 8,975,398.33/2,816.43
  6. Step 6: Final answer
    x = 3,186.80

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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.