Home / 3,086.83-4,261.58-2,131.23

Finding the Fourth Proportional to 3,086.83, 4,261.58 and 2,131.23

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Solution

The fourth proportional to 3,086.83, 4,261.58 and 2,131.23 is: 2,942.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.83 : 4,261.58 = 2,131.23 : x
  2. Step 2: Convert to fraction form
    3,086.83/4,261.58 = 2,131.23/x
  3. Step 3: Cross multiply
    3,086.83x = 4,261.58 × 2,131.23
  4. Step 4: Simplify right side
    3,086.83x = 9,082,407.14
  5. Step 5: Solve for x
    x = 9,082,407.14/3,086.83
  6. Step 6: Final answer
    x = 2,942.31

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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.