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Finding the Fourth Proportional to 3,383.78, 5,071.71 and 1,435.46

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Solution

The fourth proportional to 3,383.78, 5,071.71 and 1,435.46 is: 2,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.78 : 5,071.71 = 1,435.46 : x
  2. Step 2: Convert to fraction form
    3,383.78/5,071.71 = 1,435.46/x
  3. Step 3: Cross multiply
    3,383.78x = 5,071.71 × 1,435.46
  4. Step 4: Simplify right side
    3,383.78x = 7,280,236.84
  5. Step 5: Solve for x
    x = 7,280,236.84/3,383.78
  6. Step 6: Final answer
    x = 2,151.51

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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.