Home / 4,222.80-5,828.18-2,455.43

Finding the Fourth Proportional to 4,222.80, 5,828.18 and 2,455.43

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Solution

The fourth proportional to 4,222.80, 5,828.18 and 2,455.43 is: 3,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222.80 : 5,828.18 = 2,455.43 : x
  2. Step 2: Convert to fraction form
    4,222.80/5,828.18 = 2,455.43/x
  3. Step 3: Cross multiply
    4,222.80x = 5,828.18 × 2,455.43
  4. Step 4: Simplify right side
    4,222.80x = 14,310,708.73
  5. Step 5: Solve for x
    x = 14,310,708.73/4,222.80
  6. Step 6: Final answer
    x = 3,388.91

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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.