Home / 3,893.08-5,372.46-2,321.20

Finding the Fourth Proportional to 3,893.08, 5,372.46 and 2,321.20

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Solution

The fourth proportional to 3,893.08, 5,372.46 and 2,321.20 is: 3,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.08 : 5,372.46 = 2,321.20 : x
  2. Step 2: Convert to fraction form
    3,893.08/5,372.46 = 2,321.20/x
  3. Step 3: Cross multiply
    3,893.08x = 5,372.46 × 2,321.20
  4. Step 4: Simplify right side
    3,893.08x = 12,470,554.15
  5. Step 5: Solve for x
    x = 12,470,554.15/3,893.08
  6. Step 6: Final answer
    x = 3,203.26

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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.