Home / 4,219.62-5,821.29-2,822.82

Finding the Fourth Proportional to 4,219.62, 5,821.29 and 2,822.82

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Solution

The fourth proportional to 4,219.62, 5,821.29 and 2,822.82 is: 3,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.62 : 5,821.29 = 2,822.82 : x
  2. Step 2: Convert to fraction form
    4,219.62/5,821.29 = 2,822.82/x
  3. Step 3: Cross multiply
    4,219.62x = 5,821.29 × 2,822.82
  4. Step 4: Simplify right side
    4,219.62x = 16,432,453.84
  5. Step 5: Solve for x
    x = 16,432,453.84/4,219.62
  6. Step 6: Final answer
    x = 3,894.30

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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.