Home / 3,021.96-4,164.16-2,181.18

Finding the Fourth Proportional to 3,021.96, 4,164.16 and 2,181.18

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Solution

The fourth proportional to 3,021.96, 4,164.16 and 2,181.18 is: 3,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.96 : 4,164.16 = 2,181.18 : x
  2. Step 2: Convert to fraction form
    3,021.96/4,164.16 = 2,181.18/x
  3. Step 3: Cross multiply
    3,021.96x = 4,164.16 × 2,181.18
  4. Step 4: Simplify right side
    3,021.96x = 9,082,782.51
  5. Step 5: Solve for x
    x = 9,082,782.51/3,021.96
  6. Step 6: Final answer
    x = 3,005.59

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Half scale
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Double scale
Find fourth proportional to 3,022.96, 4,165.54 and 2,182.18
Similar ratio
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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.