Home / 3,398.12-4,690.40-2,219.37

Finding the Fourth Proportional to 3,398.12, 4,690.40 and 2,219.37

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Solution

The fourth proportional to 3,398.12, 4,690.40 and 2,219.37 is: 3,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.12 : 4,690.40 = 2,219.37 : x
  2. Step 2: Convert to fraction form
    3,398.12/4,690.40 = 2,219.37/x
  3. Step 3: Cross multiply
    3,398.12x = 4,690.40 × 2,219.37
  4. Step 4: Simplify right side
    3,398.12x = 10,409,733.05
  5. Step 5: Solve for x
    x = 10,409,733.05/3,398.12
  6. Step 6: Final answer
    x = 3,063.38

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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.