Home / 6,605.45-9,908.73-2,161.38

Finding the Fourth Proportional to 6,605.45, 9,908.73 and 2,161.38

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Solution

The fourth proportional to 6,605.45, 9,908.73 and 2,161.38 is: 3,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.45 : 9,908.73 = 2,161.38 : x
  2. Step 2: Convert to fraction form
    6,605.45/9,908.73 = 2,161.38/x
  3. Step 3: Cross multiply
    6,605.45x = 9,908.73 × 2,161.38
  4. Step 4: Simplify right side
    6,605.45x = 21,416,568.01
  5. Step 5: Solve for x
    x = 21,416,568.01/6,605.45
  6. Step 6: Final answer
    x = 3,242.26

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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.