Home / 2,785.26-3,843.90-1,606.72

Finding the Fourth Proportional to 2,785.26, 3,843.90 and 1,606.72

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Solution

The fourth proportional to 2,785.26, 3,843.90 and 1,606.72 is: 2,217.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.26 : 3,843.90 = 1,606.72 : x
  2. Step 2: Convert to fraction form
    2,785.26/3,843.90 = 1,606.72/x
  3. Step 3: Cross multiply
    2,785.26x = 3,843.90 × 1,606.72
  4. Step 4: Simplify right side
    2,785.26x = 6,176,071.01
  5. Step 5: Solve for x
    x = 6,176,071.01/2,785.26
  6. Step 6: Final answer
    x = 2,217.41

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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.