Home / 3,785.22-5,223.75-2,106.56

Finding the Fourth Proportional to 3,785.22, 5,223.75 and 2,106.56

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Solution

The fourth proportional to 3,785.22, 5,223.75 and 2,106.56 is: 2,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.22 : 5,223.75 = 2,106.56 : x
  2. Step 2: Convert to fraction form
    3,785.22/5,223.75 = 2,106.56/x
  3. Step 3: Cross multiply
    3,785.22x = 5,223.75 × 2,106.56
  4. Step 4: Simplify right side
    3,785.22x = 11,004,142.80
  5. Step 5: Solve for x
    x = 11,004,142.80/3,785.22
  6. Step 6: Final answer
    x = 2,907.13

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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.