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Finding the Fourth Proportional to 3,830.54, 5,748.54 and 1,640.84

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Solution

The fourth proportional to 3,830.54, 5,748.54 and 1,640.84 is: 2,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.54 : 5,748.54 = 1,640.84 : x
  2. Step 2: Convert to fraction form
    3,830.54/5,748.54 = 1,640.84/x
  3. Step 3: Cross multiply
    3,830.54x = 5,748.54 × 1,640.84
  4. Step 4: Simplify right side
    3,830.54x = 9,432,434.37
  5. Step 5: Solve for x
    x = 9,432,434.37/3,830.54
  6. Step 6: Final answer
    x = 2,462.43

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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.