Home / 3,938.14-5,905.16-1,857.59

Finding the Fourth Proportional to 3,938.14, 5,905.16 and 1,857.59

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Solution

The fourth proportional to 3,938.14, 5,905.16 and 1,857.59 is: 2,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.14 : 5,905.16 = 1,857.59 : x
  2. Step 2: Convert to fraction form
    3,938.14/5,905.16 = 1,857.59/x
  3. Step 3: Cross multiply
    3,938.14x = 5,905.16 × 1,857.59
  4. Step 4: Simplify right side
    3,938.14x = 10,969,336.64
  5. Step 5: Solve for x
    x = 10,969,336.64/3,938.14
  6. Step 6: Final answer
    x = 2,785.41

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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.