Home / 6,620.97-9,136.92-3,636.75

Finding the Fourth Proportional to 6,620.97, 9,136.92 and 3,636.75

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Solution

The fourth proportional to 6,620.97, 9,136.92 and 3,636.75 is: 5,018.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.97 : 9,136.92 = 3,636.75 : x
  2. Step 2: Convert to fraction form
    6,620.97/9,136.92 = 3,636.75/x
  3. Step 3: Cross multiply
    6,620.97x = 9,136.92 × 3,636.75
  4. Step 4: Simplify right side
    6,620.97x = 33,228,693.81
  5. Step 5: Solve for x
    x = 33,228,693.81/6,620.97
  6. Step 6: Final answer
    x = 5,018.70

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1.5x scale

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.