Home / 3,893.90-5,373.66-2,125.58

Finding the Fourth Proportional to 3,893.90, 5,373.66 and 2,125.58

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Solution

The fourth proportional to 3,893.90, 5,373.66 and 2,125.58 is: 2,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.90 : 5,373.66 = 2,125.58 : x
  2. Step 2: Convert to fraction form
    3,893.90/5,373.66 = 2,125.58/x
  3. Step 3: Cross multiply
    3,893.90x = 5,373.66 × 2,125.58
  4. Step 4: Simplify right side
    3,893.90x = 11,422,144.22
  5. Step 5: Solve for x
    x = 11,422,144.22/3,893.90
  6. Step 6: Final answer
    x = 2,933.34

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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.