Home / 2,790.56-4,183.65-1,453.12

Finding the Fourth Proportional to 2,790.56, 4,183.65 and 1,453.12

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Solution

The fourth proportional to 2,790.56, 4,183.65 and 1,453.12 is: 2,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.56 : 4,183.65 = 1,453.12 : x
  2. Step 2: Convert to fraction form
    2,790.56/4,183.65 = 1,453.12/x
  3. Step 3: Cross multiply
    2,790.56x = 4,183.65 × 1,453.12
  4. Step 4: Simplify right side
    2,790.56x = 6,079,338.22
  5. Step 5: Solve for x
    x = 6,079,338.22/2,790.56
  6. Step 6: Final answer
    x = 2,178.54

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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.