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Finding the Fourth Proportional to 7,734, 11,600.96 and 1,890.57

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Solution

The fourth proportional to 7,734, 11,600.96 and 1,890.57 is: 2,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,734 : 11,600.96 = 1,890.57 : x
  2. Step 2: Convert to fraction form
    7,734/11,600.96 = 1,890.57/x
  3. Step 3: Cross multiply
    7,734x = 11,600.96 × 1,890.57
  4. Step 4: Simplify right side
    7,734x = 21,932,417.49
  5. Step 5: Solve for x
    x = 21,932,417.49/7,734
  6. Step 6: Final answer
    x = 2,835.84

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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.