Home / 3,879,819.28-5,353,748.27-2,389,435.07

Finding the Fourth Proportional to 3,879,819.28, 5,353,748.27 and 2,389,435.07

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Solution

The fourth proportional to 3,879,819.28, 5,353,748.27 and 2,389,435.07 is: 3,297,172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879,819.28 : 5,353,748.27 = 2,389,435.07 : x
  2. Step 2: Convert to fraction form
    3,879,819.28/5,353,748.27 = 2,389,435.07/x
  3. Step 3: Cross multiply
    3,879,819.28x = 5,353,748.27 × 2,389,435.07
  4. Step 4: Simplify right side
    3,879,819.28x = 12,792,433,872,289.83
  5. Step 5: Solve for x
    x = 12,792,433,872,289.83/3,879,819.28
  6. Step 6: Final answer
    x = 3,297,172.62

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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.