Home / 3,759.60-5,188.44-2,081.19

Finding the Fourth Proportional to 3,759.60, 5,188.44 and 2,081.19

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Solution

The fourth proportional to 3,759.60, 5,188.44 and 2,081.19 is: 2,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.60 : 5,188.44 = 2,081.19 : x
  2. Step 2: Convert to fraction form
    3,759.60/5,188.44 = 2,081.19/x
  3. Step 3: Cross multiply
    3,759.60x = 5,188.44 × 2,081.19
  4. Step 4: Simplify right side
    3,759.60x = 10,798,129.44
  5. Step 5: Solve for x
    x = 10,798,129.44/3,759.60
  6. Step 6: Final answer
    x = 2,872.15

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Half scale
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Double scale
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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.