Home / 3,893.92-5,373.56-2,125.49

Finding the Fourth Proportional to 3,893.92, 5,373.56 and 2,125.49

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Solution

The fourth proportional to 3,893.92, 5,373.56 and 2,125.49 is: 2,933.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.92 : 5,373.56 = 2,125.49 : x
  2. Step 2: Convert to fraction form
    3,893.92/5,373.56 = 2,125.49/x
  3. Step 3: Cross multiply
    3,893.92x = 5,373.56 × 2,125.49
  4. Step 4: Simplify right side
    3,893.92x = 11,421,426.49
  5. Step 5: Solve for x
    x = 11,421,426.49/3,893.92
  6. Step 6: Final answer
    x = 2,933.15

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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.