Home / 6,988.18-10,481.07-2,057.78

Finding the Fourth Proportional to 6,988.18, 10,481.07 and 2,057.78

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Solution

The fourth proportional to 6,988.18, 10,481.07 and 2,057.78 is: 3,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.18 : 10,481.07 = 2,057.78 : x
  2. Step 2: Convert to fraction form
    6,988.18/10,481.07 = 2,057.78/x
  3. Step 3: Cross multiply
    6,988.18x = 10,481.07 × 2,057.78
  4. Step 4: Simplify right side
    6,988.18x = 21,567,736.22
  5. Step 5: Solve for x
    x = 21,567,736.22/6,988.18
  6. Step 6: Final answer
    x = 3,086.32

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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.