Home / 3,790.94-5,234.07-2,375.21

Finding the Fourth Proportional to 3,790.94, 5,234.07 and 2,375.21

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Solution

The fourth proportional to 3,790.94, 5,234.07 and 2,375.21 is: 3,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.94 : 5,234.07 = 2,375.21 : x
  2. Step 2: Convert to fraction form
    3,790.94/5,234.07 = 2,375.21/x
  3. Step 3: Cross multiply
    3,790.94x = 5,234.07 × 2,375.21
  4. Step 4: Simplify right side
    3,790.94x = 12,431,994.59
  5. Step 5: Solve for x
    x = 12,431,994.59/3,790.94
  6. Step 6: Final answer
    x = 3,279.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.