Home / 3,902.40-5,383.76-2,200.52

Finding the Fourth Proportional to 3,902.40, 5,383.76 and 2,200.52

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Solution

The fourth proportional to 3,902.40, 5,383.76 and 2,200.52 is: 3,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.40 : 5,383.76 = 2,200.52 : x
  2. Step 2: Convert to fraction form
    3,902.40/5,383.76 = 2,200.52/x
  3. Step 3: Cross multiply
    3,902.40x = 5,383.76 × 2,200.52
  4. Step 4: Simplify right side
    3,902.40x = 11,847,071.56
  5. Step 5: Solve for x
    x = 11,847,071.56/3,902.40
  6. Step 6: Final answer
    x = 3,035.84

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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.