Home / 2,783,643.80-3,843,278.70-2,137,910

Finding the Fourth Proportional to 2,783,643.80, 3,843,278.70 and 2,137,910

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Solution

The fourth proportional to 2,783,643.80, 3,843,278.70 and 2,137,910 is: 2,951,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783,643.80 : 3,843,278.70 = 2,137,910 : x
  2. Step 2: Convert to fraction form
    2,783,643.80/3,843,278.70 = 2,137,910/x
  3. Step 3: Cross multiply
    2,783,643.80x = 3,843,278.70 × 2,137,910
  4. Step 4: Simplify right side
    2,783,643.80x = 8,216,583,965,517
  5. Step 5: Solve for x
    x = 8,216,583,965,517/2,783,643.80
  6. Step 6: Final answer
    x = 2,951,736.84

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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.