Home / 4,209.45-5,809-2,321.11

Finding the Fourth Proportional to 4,209.45, 5,809 and 2,321.11

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Solution

The fourth proportional to 4,209.45, 5,809 and 2,321.11 is: 3,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.45 : 5,809 = 2,321.11 : x
  2. Step 2: Convert to fraction form
    4,209.45/5,809 = 2,321.11/x
  3. Step 3: Cross multiply
    4,209.45x = 5,809 × 2,321.11
  4. Step 4: Simplify right side
    4,209.45x = 13,483,327.99
  5. Step 5: Solve for x
    x = 13,483,327.99/4,209.45
  6. Step 6: Final answer
    x = 3,203.11

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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.