Home / 3,493.30-4,820.84-1,921.43

Finding the Fourth Proportional to 3,493.30, 4,820.84 and 1,921.43

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Solution

The fourth proportional to 3,493.30, 4,820.84 and 1,921.43 is: 2,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.30 : 4,820.84 = 1,921.43 : x
  2. Step 2: Convert to fraction form
    3,493.30/4,820.84 = 1,921.43/x
  3. Step 3: Cross multiply
    3,493.30x = 4,820.84 × 1,921.43
  4. Step 4: Simplify right side
    3,493.30x = 9,262,906.60
  5. Step 5: Solve for x
    x = 9,262,906.60/3,493.30
  6. Step 6: Final answer
    x = 2,651.62

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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.