Home / 7,321.56-10,982.94-2,127.84

Finding the Fourth Proportional to 7,321.56, 10,982.94 and 2,127.84

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Solution

The fourth proportional to 7,321.56, 10,982.94 and 2,127.84 is: 3,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.56 : 10,982.94 = 2,127.84 : x
  2. Step 2: Convert to fraction form
    7,321.56/10,982.94 = 2,127.84/x
  3. Step 3: Cross multiply
    7,321.56x = 10,982.94 × 2,127.84
  4. Step 4: Simplify right side
    7,321.56x = 23,369,939.05
  5. Step 5: Solve for x
    x = 23,369,939.05/7,321.56
  6. Step 6: Final answer
    x = 3,191.93

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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.