Home / 7,321.38-10,982.67-2,127.25

Finding the Fourth Proportional to 7,321.38, 10,982.67 and 2,127.25

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Solution

The fourth proportional to 7,321.38, 10,982.67 and 2,127.25 is: 3,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.38 : 10,982.67 = 2,127.25 : x
  2. Step 2: Convert to fraction form
    7,321.38/10,982.67 = 2,127.25/x
  3. Step 3: Cross multiply
    7,321.38x = 10,982.67 × 2,127.25
  4. Step 4: Simplify right side
    7,321.38x = 23,362,884.76
  5. Step 5: Solve for x
    x = 23,362,884.76/7,321.38
  6. Step 6: Final answer
    x = 3,191.05

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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.