Home / 3,805.50-5,708.46-1,208.28

Finding the Fourth Proportional to 3,805.50, 5,708.46 and 1,208.28

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Solution

The fourth proportional to 3,805.50, 5,708.46 and 1,208.28 is: 1,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.50 : 5,708.46 = 1,208.28 : x
  2. Step 2: Convert to fraction form
    3,805.50/5,708.46 = 1,208.28/x
  3. Step 3: Cross multiply
    3,805.50x = 5,708.46 × 1,208.28
  4. Step 4: Simplify right side
    3,805.50x = 6,897,418.05
  5. Step 5: Solve for x
    x = 6,897,418.05/3,805.50
  6. Step 6: Final answer
    x = 1,812.49

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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.