Home / 6,780.47-10,170.97-2,100.96

Finding the Fourth Proportional to 6,780.47, 10,170.97 and 2,100.96

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Solution

The fourth proportional to 6,780.47, 10,170.97 and 2,100.96 is: 3,151.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.47 : 10,170.97 = 2,100.96 : x
  2. Step 2: Convert to fraction form
    6,780.47/10,170.97 = 2,100.96/x
  3. Step 3: Cross multiply
    6,780.47x = 10,170.97 × 2,100.96
  4. Step 4: Simplify right side
    6,780.47x = 21,368,795.88
  5. Step 5: Solve for x
    x = 21,368,795.88/6,780.47
  6. Step 6: Final answer
    x = 3,151.52

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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.