Home / 2,760.67-4,131.27-2,106.19

Finding the Fourth Proportional to 2,760.67, 4,131.27 and 2,106.19

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Solution

The fourth proportional to 2,760.67, 4,131.27 and 2,106.19 is: 3,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.67 : 4,131.27 = 2,106.19 : x
  2. Step 2: Convert to fraction form
    2,760.67/4,131.27 = 2,106.19/x
  3. Step 3: Cross multiply
    2,760.67x = 4,131.27 × 2,106.19
  4. Step 4: Simplify right side
    2,760.67x = 8,701,218.90
  5. Step 5: Solve for x
    x = 8,701,218.90/2,760.67
  6. Step 6: Final answer
    x = 3,151.86

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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.