Home / 2,287.62-3,428.43-2,221.14

Finding the Fourth Proportional to 2,287.62, 3,428.43 and 2,221.14

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Solution

The fourth proportional to 2,287.62, 3,428.43 and 2,221.14 is: 3,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.62 : 3,428.43 = 2,221.14 : x
  2. Step 2: Convert to fraction form
    2,287.62/3,428.43 = 2,221.14/x
  3. Step 3: Cross multiply
    2,287.62x = 3,428.43 × 2,221.14
  4. Step 4: Simplify right side
    2,287.62x = 7,615,023.01
  5. Step 5: Solve for x
    x = 7,615,023.01/2,287.62
  6. Step 6: Final answer
    x = 3,328.80

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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.