Home / 3,897.07-5,845.08-1,815.37

Finding the Fourth Proportional to 3,897.07, 5,845.08 and 1,815.37

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Solution

The fourth proportional to 3,897.07, 5,845.08 and 1,815.37 is: 2,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.07 : 5,845.08 = 1,815.37 : x
  2. Step 2: Convert to fraction form
    3,897.07/5,845.08 = 1,815.37/x
  3. Step 3: Cross multiply
    3,897.07x = 5,845.08 × 1,815.37
  4. Step 4: Simplify right side
    3,897.07x = 10,610,982.88
  5. Step 5: Solve for x
    x = 10,610,982.88/3,897.07
  6. Step 6: Final answer
    x = 2,722.81

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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.