Home / 7,323.28-10,986.02-2,128.48

Finding the Fourth Proportional to 7,323.28, 10,986.02 and 2,128.48

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Solution

The fourth proportional to 7,323.28, 10,986.02 and 2,128.48 is: 3,193.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.28 : 10,986.02 = 2,128.48 : x
  2. Step 2: Convert to fraction form
    7,323.28/10,986.02 = 2,128.48/x
  3. Step 3: Cross multiply
    7,323.28x = 10,986.02 × 2,128.48
  4. Step 4: Simplify right side
    7,323.28x = 23,383,523.85
  5. Step 5: Solve for x
    x = 23,383,523.85/7,323.28
  6. Step 6: Final answer
    x = 3,193.04

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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.