Home / 3,219.45-4,442.54-1,822.20

Finding the Fourth Proportional to 3,219.45, 4,442.54 and 1,822.20

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Solution

The fourth proportional to 3,219.45, 4,442.54 and 1,822.20 is: 2,514.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.45 : 4,442.54 = 1,822.20 : x
  2. Step 2: Convert to fraction form
    3,219.45/4,442.54 = 1,822.20/x
  3. Step 3: Cross multiply
    3,219.45x = 4,442.54 × 1,822.20
  4. Step 4: Simplify right side
    3,219.45x = 8,095,183.00
  5. Step 5: Solve for x
    x = 8,095,183.00/3,219.45
  6. Step 6: Final answer
    x = 2,514.46

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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.