Home / 7,879.68-11,814.66-2,684.34

Finding the Fourth Proportional to 7,879.68, 11,814.66 and 2,684.34

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Solution

The fourth proportional to 7,879.68, 11,814.66 and 2,684.34 is: 4,024.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.68 : 11,814.66 = 2,684.34 : x
  2. Step 2: Convert to fraction form
    7,879.68/11,814.66 = 2,684.34/x
  3. Step 3: Cross multiply
    7,879.68x = 11,814.66 × 2,684.34
  4. Step 4: Simplify right side
    7,879.68x = 31,714,564.42
  5. Step 5: Solve for x
    x = 31,714,564.42/7,879.68
  6. Step 6: Final answer
    x = 4,024.85

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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.