Home / 3,938.55-5,908.74-1,305.96

Finding the Fourth Proportional to 3,938.55, 5,908.74 and 1,305.96

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Solution

The fourth proportional to 3,938.55, 5,908.74 and 1,305.96 is: 1,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.55 : 5,908.74 = 1,305.96 : x
  2. Step 2: Convert to fraction form
    3,938.55/5,908.74 = 1,305.96/x
  3. Step 3: Cross multiply
    3,938.55x = 5,908.74 × 1,305.96
  4. Step 4: Simplify right side
    3,938.55x = 7,716,578.09
  5. Step 5: Solve for x
    x = 7,716,578.09/3,938.55
  6. Step 6: Final answer
    x = 1,959.24

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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.