Home / 2,841.40-3,919.88-1,896.30

Finding the Fourth Proportional to 2,841.40, 3,919.88 and 1,896.30

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Solution

The fourth proportional to 2,841.40, 3,919.88 and 1,896.30 is: 2,616.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.40 : 3,919.88 = 1,896.30 : x
  2. Step 2: Convert to fraction form
    2,841.40/3,919.88 = 1,896.30/x
  3. Step 3: Cross multiply
    2,841.40x = 3,919.88 × 1,896.30
  4. Step 4: Simplify right side
    2,841.40x = 7,433,268.44
  5. Step 5: Solve for x
    x = 7,433,268.44/2,841.40
  6. Step 6: Final answer
    x = 2,616.06

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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.