Home / 3,928.75-5,893.13-1,192.75

Finding the Fourth Proportional to 3,928.75, 5,893.13 and 1,192.75

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Solution

The fourth proportional to 3,928.75, 5,893.13 and 1,192.75 is: 1,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.75 : 5,893.13 = 1,192.75 : x
  2. Step 2: Convert to fraction form
    3,928.75/5,893.13 = 1,192.75/x
  3. Step 3: Cross multiply
    3,928.75x = 5,893.13 × 1,192.75
  4. Step 4: Simplify right side
    3,928.75x = 7,029,030.81
  5. Step 5: Solve for x
    x = 7,029,030.81/3,928.75
  6. Step 6: Final answer
    x = 1,789.13

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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.