Home / 1,891.10-2,609.99-1,183.65

Finding the Fourth Proportional to 1,891.10, 2,609.99 and 1,183.65

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Solution

The fourth proportional to 1,891.10, 2,609.99 and 1,183.65 is: 1,633.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.10 : 2,609.99 = 1,183.65 : x
  2. Step 2: Convert to fraction form
    1,891.10/2,609.99 = 1,183.65/x
  3. Step 3: Cross multiply
    1,891.10x = 2,609.99 × 1,183.65
  4. Step 4: Simplify right side
    1,891.10x = 3,089,308.75
  5. Step 5: Solve for x
    x = 3,089,308.75/1,891.10
  6. Step 6: Final answer
    x = 1,633.61

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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.