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Finding the Fourth Proportional to 7,838.04, 11,747.79 and 3,446.31

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Solution

The fourth proportional to 7,838.04, 11,747.79 and 3,446.31 is: 5,165.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.04 : 11,747.79 = 3,446.31 : x
  2. Step 2: Convert to fraction form
    7,838.04/11,747.79 = 3,446.31/x
  3. Step 3: Cross multiply
    7,838.04x = 11,747.79 × 3,446.31
  4. Step 4: Simplify right side
    7,838.04x = 40,486,526.15
  5. Step 5: Solve for x
    x = 40,486,526.15/7,838.04
  6. Step 6: Final answer
    x = 5,165.39

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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.