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Finding the Fourth Proportional to 3,810.54, 5,716.47 and 1,346.79

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Solution

The fourth proportional to 3,810.54, 5,716.47 and 1,346.79 is: 2,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.54 : 5,716.47 = 1,346.79 : x
  2. Step 2: Convert to fraction form
    3,810.54/5,716.47 = 1,346.79/x
  3. Step 3: Cross multiply
    3,810.54x = 5,716.47 × 1,346.79
  4. Step 4: Simplify right side
    3,810.54x = 7,698,884.63
  5. Step 5: Solve for x
    x = 7,698,884.63/3,810.54
  6. Step 6: Final answer
    x = 2,020.42

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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.