Home / 2,131,917.66-2,941,101.36-1,271,977.92

Finding the Fourth Proportional to 2,131,917.66, 2,941,101.36 and 1,271,977.92

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Solution

The fourth proportional to 2,131,917.66, 2,941,101.36 and 1,271,977.92 is: 1,754,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,917.66 : 2,941,101.36 = 1,271,977.92 : x
  2. Step 2: Convert to fraction form
    2,131,917.66/2,941,101.36 = 1,271,977.92/x
  3. Step 3: Cross multiply
    2,131,917.66x = 2,941,101.36 × 1,271,977.92
  4. Step 4: Simplify right side
    2,131,917.66x = 3,741,015,990,401.97
  5. Step 5: Solve for x
    x = 3,741,015,990,401.97/2,131,917.66
  6. Step 6: Final answer
    x = 1,754,765.70

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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.