Home / 3,078.76-4,232.26-2,651.80

Finding the Fourth Proportional to 3,078.76, 4,232.26 and 2,651.80

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Solution

The fourth proportional to 3,078.76, 4,232.26 and 2,651.80 is: 3,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.76 : 4,232.26 = 2,651.80 : x
  2. Step 2: Convert to fraction form
    3,078.76/4,232.26 = 2,651.80/x
  3. Step 3: Cross multiply
    3,078.76x = 4,232.26 × 2,651.80
  4. Step 4: Simplify right side
    3,078.76x = 11,223,107.07
  5. Step 5: Solve for x
    x = 11,223,107.07/3,078.76
  6. Step 6: Final answer
    x = 3,645.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.