Home / 5,183.90-7,155.35-4,919.43

Finding the Fourth Proportional to 5,183.90, 7,155.35 and 4,919.43

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Solution

The fourth proportional to 5,183.90, 7,155.35 and 4,919.43 is: 6,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.90 : 7,155.35 = 4,919.43 : x
  2. Step 2: Convert to fraction form
    5,183.90/7,155.35 = 4,919.43/x
  3. Step 3: Cross multiply
    5,183.90x = 7,155.35 × 4,919.43
  4. Step 4: Simplify right side
    5,183.90x = 35,200,218.85
  5. Step 5: Solve for x
    x = 35,200,218.85/5,183.90
  6. Step 6: Final answer
    x = 6,790.30

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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.