Home / 3,938.56-5,907.38-1,306.08

Finding the Fourth Proportional to 3,938.56, 5,907.38 and 1,306.08

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Solution

The fourth proportional to 3,938.56, 5,907.38 and 1,306.08 is: 1,958.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.56 : 5,907.38 = 1,306.08 : x
  2. Step 2: Convert to fraction form
    3,938.56/5,907.38 = 1,306.08/x
  3. Step 3: Cross multiply
    3,938.56x = 5,907.38 × 1,306.08
  4. Step 4: Simplify right side
    3,938.56x = 7,715,510.87
  5. Step 5: Solve for x
    x = 7,715,510.87/3,938.56
  6. Step 6: Final answer
    x = 1,958.97

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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.