Home / 5,183.85-7,776.81-1,486.11

Finding the Fourth Proportional to 5,183.85, 7,776.81 and 1,486.11

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Solution

The fourth proportional to 5,183.85, 7,776.81 and 1,486.11 is: 2,229.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.85 : 7,776.81 = 1,486.11 : x
  2. Step 2: Convert to fraction form
    5,183.85/7,776.81 = 1,486.11/x
  3. Step 3: Cross multiply
    5,183.85x = 7,776.81 × 1,486.11
  4. Step 4: Simplify right side
    5,183.85x = 11,557,195.11
  5. Step 5: Solve for x
    x = 11,557,195.11/5,183.85
  6. Step 6: Final answer
    x = 2,229.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.