Home / 6,418.88-9,629.32-2,721.12

Finding the Fourth Proportional to 6,418.88, 9,629.32 and 2,721.12

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Solution

The fourth proportional to 6,418.88, 9,629.32 and 2,721.12 is: 4,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.88 : 9,629.32 = 2,721.12 : x
  2. Step 2: Convert to fraction form
    6,418.88/9,629.32 = 2,721.12/x
  3. Step 3: Cross multiply
    6,418.88x = 9,629.32 × 2,721.12
  4. Step 4: Simplify right side
    6,418.88x = 26,202,535.24
  5. Step 5: Solve for x
    x = 26,202,535.24/6,418.88
  6. Step 6: Final answer
    x = 4,082.11

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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.