Home / 3,785.87-5,223.92-2,107.29

Finding the Fourth Proportional to 3,785.87, 5,223.92 and 2,107.29

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Solution

The fourth proportional to 3,785.87, 5,223.92 and 2,107.29 is: 2,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.87 : 5,223.92 = 2,107.29 : x
  2. Step 2: Convert to fraction form
    3,785.87/5,223.92 = 2,107.29/x
  3. Step 3: Cross multiply
    3,785.87x = 5,223.92 × 2,107.29
  4. Step 4: Simplify right side
    3,785.87x = 11,008,303.84
  5. Step 5: Solve for x
    x = 11,008,303.84/3,785.87
  6. Step 6: Final answer
    x = 2,907.74

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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.