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Finding the Fourth Proportional to 2,365.98, 3,549 and 905.22

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Solution

The fourth proportional to 2,365.98, 3,549 and 905.22 is: 1,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,365.98 : 3,549 = 905.22 : x
  2. Step 2: Convert to fraction form
    2,365.98/3,549 = 905.22/x
  3. Step 3: Cross multiply
    2,365.98x = 3,549 × 905.22
  4. Step 4: Simplify right side
    2,365.98x = 3,212,625.78
  5. Step 5: Solve for x
    x = 3,212,625.78/2,365.98
  6. Step 6: Final answer
    x = 1,357.84

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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.