Home / 2,793.88-3,851.44-2,129.58

Finding the Fourth Proportional to 2,793.88, 3,851.44 and 2,129.58

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Solution

The fourth proportional to 2,793.88, 3,851.44 and 2,129.58 is: 2,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.88 : 3,851.44 = 2,129.58 : x
  2. Step 2: Convert to fraction form
    2,793.88/3,851.44 = 2,129.58/x
  3. Step 3: Cross multiply
    2,793.88x = 3,851.44 × 2,129.58
  4. Step 4: Simplify right side
    2,793.88x = 8,201,949.60
  5. Step 5: Solve for x
    x = 8,201,949.60/2,793.88
  6. Step 6: Final answer
    x = 2,935.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.