Home / 2,785.10-3,843.06-1,791.71

Finding the Fourth Proportional to 2,785.10, 3,843.06 and 1,791.71

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Solution

The fourth proportional to 2,785.10, 3,843.06 and 1,791.71 is: 2,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.10 : 3,843.06 = 1,791.71 : x
  2. Step 2: Convert to fraction form
    2,785.10/3,843.06 = 1,791.71/x
  3. Step 3: Cross multiply
    2,785.10x = 3,843.06 × 1,791.71
  4. Step 4: Simplify right side
    2,785.10x = 6,885,649.03
  5. Step 5: Solve for x
    x = 6,885,649.03/2,785.10
  6. Step 6: Final answer
    x = 2,472.32

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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.