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Finding the Fourth Proportional to 2,208.89, 3,313.31 and 565.43

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Solution

The fourth proportional to 2,208.89, 3,313.31 and 565.43 is: 848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.89 : 3,313.31 = 565.43 : x
  2. Step 2: Convert to fraction form
    2,208.89/3,313.31 = 565.43/x
  3. Step 3: Cross multiply
    2,208.89x = 3,313.31 × 565.43
  4. Step 4: Simplify right side
    2,208.89x = 1,873,425.48
  5. Step 5: Solve for x
    x = 1,873,425.48/2,208.89
  6. Step 6: Final answer
    x = 848.13

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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.