Home / 2,229.27-3,076.76-2,130.84

Finding the Fourth Proportional to 2,229.27, 3,076.76 and 2,130.84

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Solution

The fourth proportional to 2,229.27, 3,076.76 and 2,130.84 is: 2,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.27 : 3,076.76 = 2,130.84 : x
  2. Step 2: Convert to fraction form
    2,229.27/3,076.76 = 2,130.84/x
  3. Step 3: Cross multiply
    2,229.27x = 3,076.76 × 2,130.84
  4. Step 4: Simplify right side
    2,229.27x = 6,556,072.62
  5. Step 5: Solve for x
    x = 6,556,072.62/2,229.27
  6. Step 6: Final answer
    x = 2,940.91

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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.