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Finding the Fourth Proportional to 3,323.19, 4,985.46 and 1,375.68

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Solution

The fourth proportional to 3,323.19, 4,985.46 and 1,375.68 is: 2,063.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,323.19 : 4,985.46 = 1,375.68 : x
  2. Step 2: Convert to fraction form
    3,323.19/4,985.46 = 1,375.68/x
  3. Step 3: Cross multiply
    3,323.19x = 4,985.46 × 1,375.68
  4. Step 4: Simplify right side
    3,323.19x = 6,858,397.61
  5. Step 5: Solve for x
    x = 6,858,397.61/3,323.19
  6. Step 6: Final answer
    x = 2,063.80

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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.