Home / 6,922.90-10,385.94-1,992.58

Finding the Fourth Proportional to 6,922.90, 10,385.94 and 1,992.58

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Solution

The fourth proportional to 6,922.90, 10,385.94 and 1,992.58 is: 2,989.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.90 : 10,385.94 = 1,992.58 : x
  2. Step 2: Convert to fraction form
    6,922.90/10,385.94 = 1,992.58/x
  3. Step 3: Cross multiply
    6,922.90x = 10,385.94 × 1,992.58
  4. Step 4: Simplify right side
    6,922.90x = 20,694,816.33
  5. Step 5: Solve for x
    x = 20,694,816.33/6,922.90
  6. Step 6: Final answer
    x = 2,989.33

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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.