Home / 7,940.50-11,907.89-2,674.38

Finding the Fourth Proportional to 7,940.50, 11,907.89 and 2,674.38

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Solution

The fourth proportional to 7,940.50, 11,907.89 and 2,674.38 is: 4,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.50 : 11,907.89 = 2,674.38 : x
  2. Step 2: Convert to fraction form
    7,940.50/11,907.89 = 2,674.38/x
  3. Step 3: Cross multiply
    7,940.50x = 11,907.89 × 2,674.38
  4. Step 4: Simplify right side
    7,940.50x = 31,846,279.21
  5. Step 5: Solve for x
    x = 31,846,279.21/7,940.50
  6. Step 6: Final answer
    x = 4,010.62

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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.