Home / 5,306.78-7,958.84-2,185.94

Finding the Fourth Proportional to 5,306.78, 7,958.84 and 2,185.94

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Solution

The fourth proportional to 5,306.78, 7,958.84 and 2,185.94 is: 3,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.78 : 7,958.84 = 2,185.94 : x
  2. Step 2: Convert to fraction form
    5,306.78/7,958.84 = 2,185.94/x
  3. Step 3: Cross multiply
    5,306.78x = 7,958.84 × 2,185.94
  4. Step 4: Simplify right side
    5,306.78x = 17,397,512.38
  5. Step 5: Solve for x
    x = 17,397,512.38/5,306.78
  6. Step 6: Final answer
    x = 3,278.36

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1.5x scale

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.