Home / 7,156.90-10,736.94-2,940.15

Finding the Fourth Proportional to 7,156.90, 10,736.94 and 2,940.15

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Solution

The fourth proportional to 7,156.90, 10,736.94 and 2,940.15 is: 4,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.90 : 10,736.94 = 2,940.15 : x
  2. Step 2: Convert to fraction form
    7,156.90/10,736.94 = 2,940.15/x
  3. Step 3: Cross multiply
    7,156.90x = 10,736.94 × 2,940.15
  4. Step 4: Simplify right side
    7,156.90x = 31,568,205.03
  5. Step 5: Solve for x
    x = 31,568,205.03/7,156.90
  6. Step 6: Final answer
    x = 4,410.88

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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.