Home / 3,221.10-4,832-1,372.41

Finding the Fourth Proportional to 3,221.10, 4,832 and 1,372.41

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Solution

The fourth proportional to 3,221.10, 4,832 and 1,372.41 is: 2,058.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.10 : 4,832 = 1,372.41 : x
  2. Step 2: Convert to fraction form
    3,221.10/4,832 = 1,372.41/x
  3. Step 3: Cross multiply
    3,221.10x = 4,832 × 1,372.41
  4. Step 4: Simplify right side
    3,221.10x = 6,631,485.12
  5. Step 5: Solve for x
    x = 6,631,485.12/3,221.10
  6. Step 6: Final answer
    x = 2,058.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.