Home / 3,945.66-5,912.84-2,897.44

Finding the Fourth Proportional to 3,945.66, 5,912.84 and 2,897.44

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Solution

The fourth proportional to 3,945.66, 5,912.84 and 2,897.44 is: 4,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.66 : 5,912.84 = 2,897.44 : x
  2. Step 2: Convert to fraction form
    3,945.66/5,912.84 = 2,897.44/x
  3. Step 3: Cross multiply
    3,945.66x = 5,912.84 × 2,897.44
  4. Step 4: Simplify right side
    3,945.66x = 17,132,076.81
  5. Step 5: Solve for x
    x = 17,132,076.81/3,945.66
  6. Step 6: Final answer
    x = 4,342.01

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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.