Home / 7,091.22-10,636.44-2,160.45

Finding the Fourth Proportional to 7,091.22, 10,636.44 and 2,160.45

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Solution

The fourth proportional to 7,091.22, 10,636.44 and 2,160.45 is: 3,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.22 : 10,636.44 = 2,160.45 : x
  2. Step 2: Convert to fraction form
    7,091.22/10,636.44 = 2,160.45/x
  3. Step 3: Cross multiply
    7,091.22x = 10,636.44 × 2,160.45
  4. Step 4: Simplify right side
    7,091.22x = 22,979,496.80
  5. Step 5: Solve for x
    x = 22,979,496.80/7,091.22
  6. Step 6: Final answer
    x = 3,240.56

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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.