Home / 7,176.43-10,765.27-1,982.31

Finding the Fourth Proportional to 7,176.43, 10,765.27 and 1,982.31

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Solution

The fourth proportional to 7,176.43, 10,765.27 and 1,982.31 is: 2,973.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.43 : 10,765.27 = 1,982.31 : x
  2. Step 2: Convert to fraction form
    7,176.43/10,765.27 = 1,982.31/x
  3. Step 3: Cross multiply
    7,176.43x = 10,765.27 × 1,982.31
  4. Step 4: Simplify right side
    7,176.43x = 21,340,102.37
  5. Step 5: Solve for x
    x = 21,340,102.37/7,176.43
  6. Step 6: Final answer
    x = 2,973.64

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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.