Home / 3,800.20-5,236.48-2,803.92

Finding the Fourth Proportional to 3,800.20, 5,236.48 and 2,803.92

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Solution

The fourth proportional to 3,800.20, 5,236.48 and 2,803.92 is: 3,863.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.20 : 5,236.48 = 2,803.92 : x
  2. Step 2: Convert to fraction form
    3,800.20/5,236.48 = 2,803.92/x
  3. Step 3: Cross multiply
    3,800.20x = 5,236.48 × 2,803.92
  4. Step 4: Simplify right side
    3,800.20x = 14,682,671.00
  5. Step 5: Solve for x
    x = 14,682,671.00/3,800.20
  6. Step 6: Final answer
    x = 3,863.66

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1.5x scale

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.