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Finding the Fourth Proportional to 2,212.37, 3,318.56 and 568.92

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Solution

The fourth proportional to 2,212.37, 3,318.56 and 568.92 is: 853.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.37 : 3,318.56 = 568.92 : x
  2. Step 2: Convert to fraction form
    2,212.37/3,318.56 = 568.92/x
  3. Step 3: Cross multiply
    2,212.37x = 3,318.56 × 568.92
  4. Step 4: Simplify right side
    2,212.37x = 1,887,995.16
  5. Step 5: Solve for x
    x = 1,887,995.16/2,212.37
  6. Step 6: Final answer
    x = 853.38

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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.