Home / 2,830,911.42-3,906,821.16-2,131,940.70

Finding the Fourth Proportional to 2,830,911.42, 3,906,821.16 and 2,131,940.70

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Solution

The fourth proportional to 2,830,911.42, 3,906,821.16 and 2,131,940.70 is: 2,942,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830,911.42 : 3,906,821.16 = 2,131,940.70 : x
  2. Step 2: Convert to fraction form
    2,830,911.42/3,906,821.16 = 2,131,940.70/x
  3. Step 3: Cross multiply
    2,830,911.42x = 3,906,821.16 × 2,131,940.70
  4. Step 4: Simplify right side
    2,830,911.42x = 8,329,111,038,625.21
  5. Step 5: Solve for x
    x = 8,329,111,038,625.21/2,830,911.42
  6. Step 6: Final answer
    x = 2,942,201.22

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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.