Home / 3,591,905.85-4,956,876-2,121,862.77

Finding the Fourth Proportional to 3,591,905.85, 4,956,876 and 2,121,862.77

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Solution

The fourth proportional to 3,591,905.85, 4,956,876 and 2,121,862.77 is: 2,928,197.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591,905.85 : 4,956,876 = 2,121,862.77 : x
  2. Step 2: Convert to fraction form
    3,591,905.85/4,956,876 = 2,121,862.77/x
  3. Step 3: Cross multiply
    3,591,905.85x = 4,956,876 × 2,121,862.77
  4. Step 4: Simplify right side
    3,591,905.85x = 10,517,810,639,906.52
  5. Step 5: Solve for x
    x = 10,517,810,639,906.52/3,591,905.85
  6. Step 6: Final answer
    x = 2,928,197.75

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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.