Home / 3,902.13-5,384.87-2,133.73

Finding the Fourth Proportional to 3,902.13, 5,384.87 and 2,133.73

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Solution

The fourth proportional to 3,902.13, 5,384.87 and 2,133.73 is: 2,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.13 : 5,384.87 = 2,133.73 : x
  2. Step 2: Convert to fraction form
    3,902.13/5,384.87 = 2,133.73/x
  3. Step 3: Cross multiply
    3,902.13x = 5,384.87 × 2,133.73
  4. Step 4: Simplify right side
    3,902.13x = 11,489,848.00
  5. Step 5: Solve for x
    x = 11,489,848.00/3,902.13
  6. Step 6: Final answer
    x = 2,944.51

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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.