Home / 3,219.09-4,442.29-1,821.84

Finding the Fourth Proportional to 3,219.09, 4,442.29 and 1,821.84

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Solution

The fourth proportional to 3,219.09, 4,442.29 and 1,821.84 is: 2,514.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.09 : 4,442.29 = 1,821.84 : x
  2. Step 2: Convert to fraction form
    3,219.09/4,442.29 = 1,821.84/x
  3. Step 3: Cross multiply
    3,219.09x = 4,442.29 × 1,821.84
  4. Step 4: Simplify right side
    3,219.09x = 8,093,141.61
  5. Step 5: Solve for x
    x = 8,093,141.61/3,219.09
  6. Step 6: Final answer
    x = 2,514.11

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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.