Home / 3,684.09-5,082.38-2,191.16

Finding the Fourth Proportional to 3,684.09, 5,082.38 and 2,191.16

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Solution

The fourth proportional to 3,684.09, 5,082.38 and 2,191.16 is: 3,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.09 : 5,082.38 = 2,191.16 : x
  2. Step 2: Convert to fraction form
    3,684.09/5,082.38 = 2,191.16/x
  3. Step 3: Cross multiply
    3,684.09x = 5,082.38 × 2,191.16
  4. Step 4: Simplify right side
    3,684.09x = 11,136,271.39
  5. Step 5: Solve for x
    x = 11,136,271.39/3,684.09
  6. Step 6: Final answer
    x = 3,022.80

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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.