Home / 2,828.85-4,233.42-2,160.60

Finding the Fourth Proportional to 2,828.85, 4,233.42 and 2,160.60

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Solution

The fourth proportional to 2,828.85, 4,233.42 and 2,160.60 is: 3,233.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.85 : 4,233.42 = 2,160.60 : x
  2. Step 2: Convert to fraction form
    2,828.85/4,233.42 = 2,160.60/x
  3. Step 3: Cross multiply
    2,828.85x = 4,233.42 × 2,160.60
  4. Step 4: Simplify right side
    2,828.85x = 9,146,727.25
  5. Step 5: Solve for x
    x = 9,146,727.25/2,828.85
  6. Step 6: Final answer
    x = 3,233.37

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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.