Home / 2,078.36-2,865.38-1,722.94

Finding the Fourth Proportional to 2,078.36, 2,865.38 and 1,722.94

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Solution

The fourth proportional to 2,078.36, 2,865.38 and 1,722.94 is: 2,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.36 : 2,865.38 = 1,722.94 : x
  2. Step 2: Convert to fraction form
    2,078.36/2,865.38 = 1,722.94/x
  3. Step 3: Cross multiply
    2,078.36x = 2,865.38 × 1,722.94
  4. Step 4: Simplify right side
    2,078.36x = 4,936,877.82
  5. Step 5: Solve for x
    x = 4,936,877.82/2,078.36
  6. Step 6: Final answer
    x = 2,375.37

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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.