Home / 3,840.13-5,759.92-2,191.51

Finding the Fourth Proportional to 3,840.13, 5,759.92 and 2,191.51

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Solution

The fourth proportional to 3,840.13, 5,759.92 and 2,191.51 is: 3,287.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.13 : 5,759.92 = 2,191.51 : x
  2. Step 2: Convert to fraction form
    3,840.13/5,759.92 = 2,191.51/x
  3. Step 3: Cross multiply
    3,840.13x = 5,759.92 × 2,191.51
  4. Step 4: Simplify right side
    3,840.13x = 12,622,922.28
  5. Step 5: Solve for x
    x = 12,622,922.28/3,840.13
  6. Step 6: Final answer
    x = 3,287.11

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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.