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Finding the Fourth Proportional to 3,546, 5,321.04 and 1,902.60

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Solution

The fourth proportional to 3,546, 5,321.04 and 1,902.60 is: 2,854.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546 : 5,321.04 = 1,902.60 : x
  2. Step 2: Convert to fraction form
    3,546/5,321.04 = 1,902.60/x
  3. Step 3: Cross multiply
    3,546x = 5,321.04 × 1,902.60
  4. Step 4: Simplify right side
    3,546x = 10,123,810.70
  5. Step 5: Solve for x
    x = 10,123,810.70/3,546
  6. Step 6: Final answer
    x = 2,854.99

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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.