Home / 3,218.44-4,442.10-1,821.64

Finding the Fourth Proportional to 3,218.44, 4,442.10 and 1,821.64

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Solution

The fourth proportional to 3,218.44, 4,442.10 and 1,821.64 is: 2,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.44 : 4,442.10 = 1,821.64 : x
  2. Step 2: Convert to fraction form
    3,218.44/4,442.10 = 1,821.64/x
  3. Step 3: Cross multiply
    3,218.44x = 4,442.10 × 1,821.64
  4. Step 4: Simplify right side
    3,218.44x = 8,091,907.04
  5. Step 5: Solve for x
    x = 8,091,907.04/3,218.44
  6. Step 6: Final answer
    x = 2,514.23

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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.