Home / 3,682.30-5,081.01-2,190.19

Finding the Fourth Proportional to 3,682.30, 5,081.01 and 2,190.19

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Solution

The fourth proportional to 3,682.30, 5,081.01 and 2,190.19 is: 3,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,682.30 : 5,081.01 = 2,190.19 : x
  2. Step 2: Convert to fraction form
    3,682.30/5,081.01 = 2,190.19/x
  3. Step 3: Cross multiply
    3,682.30x = 5,081.01 × 2,190.19
  4. Step 4: Simplify right side
    3,682.30x = 11,128,377.29
  5. Step 5: Solve for x
    x = 11,128,377.29/3,682.30
  6. Step 6: Final answer
    x = 3,022.13

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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.