Home / 3,759.93-5,188.53-2,081.21

Finding the Fourth Proportional to 3,759.93, 5,188.53 and 2,081.21

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Solution

The fourth proportional to 3,759.93, 5,188.53 and 2,081.21 is: 2,871.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.93 : 5,188.53 = 2,081.21 : x
  2. Step 2: Convert to fraction form
    3,759.93/5,188.53 = 2,081.21/x
  3. Step 3: Cross multiply
    3,759.93x = 5,188.53 × 2,081.21
  4. Step 4: Simplify right side
    3,759.93x = 10,798,443.22
  5. Step 5: Solve for x
    x = 10,798,443.22/3,759.93
  6. Step 6: Final answer
    x = 2,871.98

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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.