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Finding the Fourth Proportional to 2,403.54, 3,605.81 and 843.48

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Solution

The fourth proportional to 2,403.54, 3,605.81 and 843.48 is: 1,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.54 : 3,605.81 = 843.48 : x
  2. Step 2: Convert to fraction form
    2,403.54/3,605.81 = 843.48/x
  3. Step 3: Cross multiply
    2,403.54x = 3,605.81 × 843.48
  4. Step 4: Simplify right side
    2,403.54x = 3,041,424.40
  5. Step 5: Solve for x
    x = 3,041,424.40/2,403.54
  6. Step 6: Final answer
    x = 1,265.39

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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.