Home / 6,781.56-10,172.68-2,104.76

Finding the Fourth Proportional to 6,781.56, 10,172.68 and 2,104.76

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Solution

The fourth proportional to 6,781.56, 10,172.68 and 2,104.76 is: 3,157.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.56 : 10,172.68 = 2,104.76 : x
  2. Step 2: Convert to fraction form
    6,781.56/10,172.68 = 2,104.76/x
  3. Step 3: Cross multiply
    6,781.56x = 10,172.68 × 2,104.76
  4. Step 4: Simplify right side
    6,781.56x = 21,410,993.83
  5. Step 5: Solve for x
    x = 21,410,993.83/6,781.56
  6. Step 6: Final answer
    x = 3,157.24

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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.