Home / 2,816.26-4,224.40-868.42

Finding the Fourth Proportional to 2,816.26, 4,224.40 and 868.42

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Solution

The fourth proportional to 2,816.26, 4,224.40 and 868.42 is: 1,302.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.26 : 4,224.40 = 868.42 : x
  2. Step 2: Convert to fraction form
    2,816.26/4,224.40 = 868.42/x
  3. Step 3: Cross multiply
    2,816.26x = 4,224.40 × 868.42
  4. Step 4: Simplify right side
    2,816.26x = 3,668,553.45
  5. Step 5: Solve for x
    x = 3,668,553.45/2,816.26
  6. Step 6: Final answer
    x = 1,302.63

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1.5x scale

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.