Home / 3,785.16-5,223.49-2,106.70

Finding the Fourth Proportional to 3,785.16, 5,223.49 and 2,106.70

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Solution

The fourth proportional to 3,785.16, 5,223.49 and 2,106.70 is: 2,907.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.16 : 5,223.49 = 2,106.70 : x
  2. Step 2: Convert to fraction form
    3,785.16/5,223.49 = 2,106.70/x
  3. Step 3: Cross multiply
    3,785.16x = 5,223.49 × 2,106.70
  4. Step 4: Simplify right side
    3,785.16x = 11,004,326.38
  5. Step 5: Solve for x
    x = 11,004,326.38/3,785.16
  6. Step 6: Final answer
    x = 2,907.23

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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.