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Finding the Fourth Proportional to 3,402.78, 5,104.11 and 1,094.28

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Solution

The fourth proportional to 3,402.78, 5,104.11 and 1,094.28 is: 1,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.78 : 5,104.11 = 1,094.28 : x
  2. Step 2: Convert to fraction form
    3,402.78/5,104.11 = 1,094.28/x
  3. Step 3: Cross multiply
    3,402.78x = 5,104.11 × 1,094.28
  4. Step 4: Simplify right side
    3,402.78x = 5,585,325.49
  5. Step 5: Solve for x
    x = 5,585,325.49/3,402.78
  6. Step 6: Final answer
    x = 1,641.40

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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.