Home / 3,493.76-4,821.32-1,921.83

Finding the Fourth Proportional to 3,493.76, 4,821.32 and 1,921.83

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Solution

The fourth proportional to 3,493.76, 4,821.32 and 1,921.83 is: 2,652.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.76 : 4,821.32 = 1,921.83 : x
  2. Step 2: Convert to fraction form
    3,493.76/4,821.32 = 1,921.83/x
  3. Step 3: Cross multiply
    3,493.76x = 4,821.32 × 1,921.83
  4. Step 4: Simplify right side
    3,493.76x = 9,265,747.81
  5. Step 5: Solve for x
    x = 9,265,747.81/3,493.76
  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.