Home / 3,879,549.12-5,353,943.20-2,160,669.62

Finding the Fourth Proportional to 3,879,549.12, 5,353,943.20 and 2,160,669.62

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Solution

The fourth proportional to 3,879,549.12, 5,353,943.20 and 2,160,669.62 is: 2,981,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879,549.12 : 5,353,943.20 = 2,160,669.62 : x
  2. Step 2: Convert to fraction form
    3,879,549.12/5,353,943.20 = 2,160,669.62/x
  3. Step 3: Cross multiply
    3,879,549.12x = 5,353,943.20 × 2,160,669.62
  4. Step 4: Simplify right side
    3,879,549.12x = 11,568,102,419,445.59
  5. Step 5: Solve for x
    x = 11,568,102,419,445.59/3,879,549.12
  6. Step 6: Final answer
    x = 2,981,816.20

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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.