Home / 6,620.90-9,137.10-3,637.02

Finding the Fourth Proportional to 6,620.90, 9,137.10 and 3,637.02

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Solution

The fourth proportional to 6,620.90, 9,137.10 and 3,637.02 is: 5,019.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.90 : 9,137.10 = 3,637.02 : x
  2. Step 2: Convert to fraction form
    6,620.90/9,137.10 = 3,637.02/x
  3. Step 3: Cross multiply
    6,620.90x = 9,137.10 × 3,637.02
  4. Step 4: Simplify right side
    6,620.90x = 33,231,815.44
  5. Step 5: Solve for x
    x = 33,231,815.44/6,620.90
  6. Step 6: Final answer
    x = 5,019.23

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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.