Home / 6,800.88-10,201.72-2,121.56

Finding the Fourth Proportional to 6,800.88, 10,201.72 and 2,121.56

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Solution

The fourth proportional to 6,800.88, 10,201.72 and 2,121.56 is: 3,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800.88 : 10,201.72 = 2,121.56 : x
  2. Step 2: Convert to fraction form
    6,800.88/10,201.72 = 2,121.56/x
  3. Step 3: Cross multiply
    6,800.88x = 10,201.72 × 2,121.56
  4. Step 4: Simplify right side
    6,800.88x = 21,643,561.08
  5. Step 5: Solve for x
    x = 21,643,561.08/6,800.88
  6. Step 6: Final answer
    x = 3,182.46

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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.