Home / 7,120.44-10,681.68-2,190.48

Finding the Fourth Proportional to 7,120.44, 10,681.68 and 2,190.48

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Solution

The fourth proportional to 7,120.44, 10,681.68 and 2,190.48 is: 3,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.44 : 10,681.68 = 2,190.48 : x
  2. Step 2: Convert to fraction form
    7,120.44/10,681.68 = 2,190.48/x
  3. Step 3: Cross multiply
    7,120.44x = 10,681.68 × 2,190.48
  4. Step 4: Simplify right side
    7,120.44x = 23,398,006.41
  5. Step 5: Solve for x
    x = 23,398,006.41/7,120.44
  6. Step 6: Final answer
    x = 3,286.03

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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.