Home / 3,893.89-5,373.34-2,125.14

Finding the Fourth Proportional to 3,893.89, 5,373.34 and 2,125.14

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Solution

The fourth proportional to 3,893.89, 5,373.34 and 2,125.14 is: 2,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.89 : 5,373.34 = 2,125.14 : x
  2. Step 2: Convert to fraction form
    3,893.89/5,373.34 = 2,125.14/x
  3. Step 3: Cross multiply
    3,893.89x = 5,373.34 × 2,125.14
  4. Step 4: Simplify right side
    3,893.89x = 11,419,099.77
  5. Step 5: Solve for x
    x = 11,419,099.77/3,893.89
  6. Step 6: Final answer
    x = 2,932.57

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Double scale
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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.