Home / 7,137.36-10,705.68-2,206.56

Finding the Fourth Proportional to 7,137.36, 10,705.68 and 2,206.56

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Solution

The fourth proportional to 7,137.36, 10,705.68 and 2,206.56 is: 3,309.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.36 : 10,705.68 = 2,206.56 : x
  2. Step 2: Convert to fraction form
    7,137.36/10,705.68 = 2,206.56/x
  3. Step 3: Cross multiply
    7,137.36x = 10,705.68 × 2,206.56
  4. Step 4: Simplify right side
    7,137.36x = 23,622,725.26
  5. Step 5: Solve for x
    x = 23,622,725.26/7,137.36
  6. Step 6: Final answer
    x = 3,309.73

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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.