Home / 7,879.23-11,814.67-2,331.81

Finding the Fourth Proportional to 7,879.23, 11,814.67 and 2,331.81

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Solution

The fourth proportional to 7,879.23, 11,814.67 and 2,331.81 is: 3,496.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.23 : 11,814.67 = 2,331.81 : x
  2. Step 2: Convert to fraction form
    7,879.23/11,814.67 = 2,331.81/x
  3. Step 3: Cross multiply
    7,879.23x = 11,814.67 × 2,331.81
  4. Step 4: Simplify right side
    7,879.23x = 27,549,565.65
  5. Step 5: Solve for x
    x = 27,549,565.65/7,879.23
  6. Step 6: Final answer
    x = 3,496.48

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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.