Home / 3,493.77-4,821.29-1,921.85

Finding the Fourth Proportional to 3,493.77, 4,821.29 and 1,921.85

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Solution

The fourth proportional to 3,493.77, 4,821.29 and 1,921.85 is: 2,652.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.77 : 4,821.29 = 1,921.85 : x
  2. Step 2: Convert to fraction form
    3,493.77/4,821.29 = 1,921.85/x
  3. Step 3: Cross multiply
    3,493.77x = 4,821.29 × 1,921.85
  4. Step 4: Simplify right side
    3,493.77x = 9,265,786.58
  5. Step 5: Solve for x
    x = 9,265,786.58/3,493.77
  6. Step 6: Final answer
    x = 2,652.09

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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.