Home / 1,899.44-2,863.77-1,865.42

Finding the Fourth Proportional to 1,899.44, 2,863.77 and 1,865.42

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Solution

The fourth proportional to 1,899.44, 2,863.77 and 1,865.42 is: 2,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.44 : 2,863.77 = 1,865.42 : x
  2. Step 2: Convert to fraction form
    1,899.44/2,863.77 = 1,865.42/x
  3. Step 3: Cross multiply
    1,899.44x = 2,863.77 × 1,865.42
  4. Step 4: Simplify right side
    1,899.44x = 5,342,119.51
  5. Step 5: Solve for x
    x = 5,342,119.51/1,899.44
  6. Step 6: Final answer
    x = 2,812.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.