Home / 3,840.08-5,759.92-1,891.63

Finding the Fourth Proportional to 3,840.08, 5,759.92 and 1,891.63

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Solution

The fourth proportional to 3,840.08, 5,759.92 and 1,891.63 is: 2,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.08 : 5,759.92 = 1,891.63 : x
  2. Step 2: Convert to fraction form
    3,840.08/5,759.92 = 1,891.63/x
  3. Step 3: Cross multiply
    3,840.08x = 5,759.92 × 1,891.63
  4. Step 4: Simplify right side
    3,840.08x = 10,895,599.21
  5. Step 5: Solve for x
    x = 10,895,599.21/3,840.08
  6. Step 6: Final answer
    x = 2,837.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.