Home / 4,205.88-5,803.20-2,879.28

Finding the Fourth Proportional to 4,205.88, 5,803.20 and 2,879.28

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Solution

The fourth proportional to 4,205.88, 5,803.20 and 2,879.28 is: 3,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,205.88 : 5,803.20 = 2,879.28 : x
  2. Step 2: Convert to fraction form
    4,205.88/5,803.20 = 2,879.28/x
  3. Step 3: Cross multiply
    4,205.88x = 5,803.20 × 2,879.28
  4. Step 4: Simplify right side
    4,205.88x = 16,709,037.70
  5. Step 5: Solve for x
    x = 16,709,037.70/4,205.88
  6. Step 6: Final answer
    x = 3,972.78

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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.