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Finding the Fourth Proportional to 3,393.39, 5,090.15 and 1,084.89

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Solution

The fourth proportional to 3,393.39, 5,090.15 and 1,084.89 is: 1,627.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.39 : 5,090.15 = 1,084.89 : x
  2. Step 2: Convert to fraction form
    3,393.39/5,090.15 = 1,084.89/x
  3. Step 3: Cross multiply
    3,393.39x = 5,090.15 × 1,084.89
  4. Step 4: Simplify right side
    3,393.39x = 5,522,247.41
  5. Step 5: Solve for x
    x = 5,522,247.41/3,393.39
  6. Step 6: Final answer
    x = 1,627.35

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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.