Home / 3,961.61-5,466.96-2,169.05

Finding the Fourth Proportional to 3,961.61, 5,466.96 and 2,169.05

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Solution

The fourth proportional to 3,961.61, 5,466.96 and 2,169.05 is: 2,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.61 : 5,466.96 = 2,169.05 : x
  2. Step 2: Convert to fraction form
    3,961.61/5,466.96 = 2,169.05/x
  3. Step 3: Cross multiply
    3,961.61x = 5,466.96 × 2,169.05
  4. Step 4: Simplify right side
    3,961.61x = 11,858,082.25
  5. Step 5: Solve for x
    x = 11,858,082.25/3,961.61
  6. Step 6: Final answer
    x = 2,993.25

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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.