Home / 3,938.24-5,908.82-1,745.40

Finding the Fourth Proportional to 3,938.24, 5,908.82 and 1,745.40

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Solution

The fourth proportional to 3,938.24, 5,908.82 and 1,745.40 is: 2,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.24 : 5,908.82 = 1,745.40 : x
  2. Step 2: Convert to fraction form
    3,938.24/5,908.82 = 1,745.40/x
  3. Step 3: Cross multiply
    3,938.24x = 5,908.82 × 1,745.40
  4. Step 4: Simplify right side
    3,938.24x = 10,313,254.43
  5. Step 5: Solve for x
    x = 10,313,254.43/3,938.24
  6. Step 6: Final answer
    x = 2,618.75

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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.