Home / 3,879,739.56-5,353,837.38-2,160,828.84

Finding the Fourth Proportional to 3,879,739.56, 5,353,837.38 and 2,160,828.84

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Solution

The fourth proportional to 3,879,739.56, 5,353,837.38 and 2,160,828.84 is: 2,981,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879,739.56 : 5,353,837.38 = 2,160,828.84 : x
  2. Step 2: Convert to fraction form
    3,879,739.56/5,353,837.38 = 2,160,828.84/x
  3. Step 3: Cross multiply
    3,879,739.56x = 5,353,837.38 × 2,160,828.84
  4. Step 4: Simplify right side
    3,879,739.56x = 11,568,726,215,374.04
  5. Step 5: Solve for x
    x = 11,568,726,215,374.04/3,879,739.56
  6. Step 6: Final answer
    x = 2,981,830.62

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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.