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Finding the Fourth Proportional to 3,405.31, 5,104.33 and 1,941.31

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Solution

The fourth proportional to 3,405.31, 5,104.33 and 1,941.31 is: 2,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.31 : 5,104.33 = 1,941.31 : x
  2. Step 2: Convert to fraction form
    3,405.31/5,104.33 = 1,941.31/x
  3. Step 3: Cross multiply
    3,405.31x = 5,104.33 × 1,941.31
  4. Step 4: Simplify right side
    3,405.31x = 9,909,051.64
  5. Step 5: Solve for x
    x = 9,909,051.64/3,405.31
  6. Step 6: Final answer
    x = 2,909.89

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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.