Home / 3,785.25-5,223.62-2,106.76

Finding the Fourth Proportional to 3,785.25, 5,223.62 and 2,106.76

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Solution

The fourth proportional to 3,785.25, 5,223.62 and 2,106.76 is: 2,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.25 : 5,223.62 = 2,106.76 : x
  2. Step 2: Convert to fraction form
    3,785.25/5,223.62 = 2,106.76/x
  3. Step 3: Cross multiply
    3,785.25x = 5,223.62 × 2,106.76
  4. Step 4: Simplify right side
    3,785.25x = 11,004,913.67
  5. Step 5: Solve for x
    x = 11,004,913.67/3,785.25
  6. Step 6: Final answer
    x = 2,907.31

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Half scale
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Double scale
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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.