Home / 2,816.44-4,224.67-868.79

Finding the Fourth Proportional to 2,816.44, 4,224.67 and 868.79

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Solution

The fourth proportional to 2,816.44, 4,224.67 and 868.79 is: 1,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.44 : 4,224.67 = 868.79 : x
  2. Step 2: Convert to fraction form
    2,816.44/4,224.67 = 868.79/x
  3. Step 3: Cross multiply
    2,816.44x = 4,224.67 × 868.79
  4. Step 4: Simplify right side
    2,816.44x = 3,670,359.44
  5. Step 5: Solve for x
    x = 3,670,359.44/2,816.44
  6. Step 6: Final answer
    x = 1,303.19

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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.