Home / 3,678.26-5,519.80-1,369.76

Finding the Fourth Proportional to 3,678.26, 5,519.80 and 1,369.76

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Solution

The fourth proportional to 3,678.26, 5,519.80 and 1,369.76 is: 2,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.26 : 5,519.80 = 1,369.76 : x
  2. Step 2: Convert to fraction form
    3,678.26/5,519.80 = 1,369.76/x
  3. Step 3: Cross multiply
    3,678.26x = 5,519.80 × 1,369.76
  4. Step 4: Simplify right side
    3,678.26x = 7,560,801.25
  5. Step 5: Solve for x
    x = 7,560,801.25/3,678.26
  6. Step 6: Final answer
    x = 2,055.54

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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.