Home / 2,785.20-3,843.78-1,606.44

Finding the Fourth Proportional to 2,785.20, 3,843.78 and 1,606.44

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Solution

The fourth proportional to 2,785.20, 3,843.78 and 1,606.44 is: 2,217.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.20 : 3,843.78 = 1,606.44 : x
  2. Step 2: Convert to fraction form
    2,785.20/3,843.78 = 1,606.44/x
  3. Step 3: Cross multiply
    2,785.20x = 3,843.78 × 1,606.44
  4. Step 4: Simplify right side
    2,785.20x = 6,174,801.94
  5. Step 5: Solve for x
    x = 6,174,801.94/2,785.20
  6. Step 6: Final answer
    x = 2,217.00

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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.