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Finding the Fourth Proportional to 3,808.31, 5,707.31 and 1,955.52

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Solution

The fourth proportional to 3,808.31, 5,707.31 and 1,955.52 is: 2,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.31 : 5,707.31 = 1,955.52 : x
  2. Step 2: Convert to fraction form
    3,808.31/5,707.31 = 1,955.52/x
  3. Step 3: Cross multiply
    3,808.31x = 5,707.31 × 1,955.52
  4. Step 4: Simplify right side
    3,808.31x = 11,160,749.07
  5. Step 5: Solve for x
    x = 11,160,749.07/3,808.31
  6. Step 6: Final answer
    x = 2,930.63

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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.