Home / 2,771.57-4,152.93-1,940.21

Finding the Fourth Proportional to 2,771.57, 4,152.93 and 1,940.21

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Solution

The fourth proportional to 2,771.57, 4,152.93 and 1,940.21 is: 2,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.57 : 4,152.93 = 1,940.21 : x
  2. Step 2: Convert to fraction form
    2,771.57/4,152.93 = 1,940.21/x
  3. Step 3: Cross multiply
    2,771.57x = 4,152.93 × 1,940.21
  4. Step 4: Simplify right side
    2,771.57x = 8,057,556.32
  5. Step 5: Solve for x
    x = 8,057,556.32/2,771.57
  6. Step 6: Final answer
    x = 2,907.22

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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.