Home / 6,418.97-9,620.50-3,637.21

Finding the Fourth Proportional to 6,418.97, 9,620.50 and 3,637.21

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Solution

The fourth proportional to 6,418.97, 9,620.50 and 3,637.21 is: 5,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.97 : 9,620.50 = 3,637.21 : x
  2. Step 2: Convert to fraction form
    6,418.97/9,620.50 = 3,637.21/x
  3. Step 3: Cross multiply
    6,418.97x = 9,620.50 × 3,637.21
  4. Step 4: Simplify right side
    6,418.97x = 34,991,745.66
  5. Step 5: Solve for x
    x = 34,991,745.66/6,418.97
  6. Step 6: Final answer
    x = 5,451.31

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1.5x scale

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.