Home / 6,739.20-10,109.10-2,581.20

Finding the Fourth Proportional to 6,739.20, 10,109.10 and 2,581.20

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Solution

The fourth proportional to 6,739.20, 10,109.10 and 2,581.20 is: 3,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739.20 : 10,109.10 = 2,581.20 : x
  2. Step 2: Convert to fraction form
    6,739.20/10,109.10 = 2,581.20/x
  3. Step 3: Cross multiply
    6,739.20x = 10,109.10 × 2,581.20
  4. Step 4: Simplify right side
    6,739.20x = 26,093,608.92
  5. Step 5: Solve for x
    x = 26,093,608.92/6,739.20
  6. Step 6: Final answer
    x = 3,871.91

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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.