Home / 2,278.70-3,157.82-2,234.96

Finding the Fourth Proportional to 2,278.70, 3,157.82 and 2,234.96

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Solution

The fourth proportional to 2,278.70, 3,157.82 and 2,234.96 is: 3,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.70 : 3,157.82 = 2,234.96 : x
  2. Step 2: Convert to fraction form
    2,278.70/3,157.82 = 2,234.96/x
  3. Step 3: Cross multiply
    2,278.70x = 3,157.82 × 2,234.96
  4. Step 4: Simplify right side
    2,278.70x = 7,057,601.39
  5. Step 5: Solve for x
    x = 7,057,601.39/2,278.70
  6. Step 6: Final answer
    x = 3,097.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.