Home / 7,221.47-10,828.97-3,323.75

Finding the Fourth Proportional to 7,221.47, 10,828.97 and 3,323.75

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Solution

The fourth proportional to 7,221.47, 10,828.97 and 3,323.75 is: 4,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.47 : 10,828.97 = 3,323.75 : x
  2. Step 2: Convert to fraction form
    7,221.47/10,828.97 = 3,323.75/x
  3. Step 3: Cross multiply
    7,221.47x = 10,828.97 × 3,323.75
  4. Step 4: Simplify right side
    7,221.47x = 35,992,772.42
  5. Step 5: Solve for x
    x = 35,992,772.42/7,221.47
  6. Step 6: Final answer
    x = 4,984.13

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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.