Home / 3,623.70-5,436.78-1,774.47

Finding the Fourth Proportional to 3,623.70, 5,436.78 and 1,774.47

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Solution

The fourth proportional to 3,623.70, 5,436.78 and 1,774.47 is: 2,662.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.70 : 5,436.78 = 1,774.47 : x
  2. Step 2: Convert to fraction form
    3,623.70/5,436.78 = 1,774.47/x
  3. Step 3: Cross multiply
    3,623.70x = 5,436.78 × 1,774.47
  4. Step 4: Simplify right side
    3,623.70x = 9,647,403.01
  5. Step 5: Solve for x
    x = 9,647,403.01/3,623.70
  6. Step 6: Final answer
    x = 2,662.31

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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.