Home / 3,893.80-5,373.44-2,125.42

Finding the Fourth Proportional to 3,893.80, 5,373.44 and 2,125.42

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Solution

The fourth proportional to 3,893.80, 5,373.44 and 2,125.42 is: 2,933.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.80 : 5,373.44 = 2,125.42 : x
  2. Step 2: Convert to fraction form
    3,893.80/5,373.44 = 2,125.42/x
  3. Step 3: Cross multiply
    3,893.80x = 5,373.44 × 2,125.42
  4. Step 4: Simplify right side
    3,893.80x = 11,420,779.35
  5. Step 5: Solve for x
    x = 11,420,779.35/3,893.80
  6. Step 6: Final answer
    x = 2,933.07

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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.