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Finding the Fourth Proportional to 3,413, 5,120.22 and 1,104.68

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Solution

The fourth proportional to 3,413, 5,120.22 and 1,104.68 is: 1,657.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413 : 5,120.22 = 1,104.68 : x
  2. Step 2: Convert to fraction form
    3,413/5,120.22 = 1,104.68/x
  3. Step 3: Cross multiply
    3,413x = 5,120.22 × 1,104.68
  4. Step 4: Simplify right side
    3,413x = 5,656,204.63
  5. Step 5: Solve for x
    x = 5,656,204.63/3,413
  6. Step 6: Final answer
    x = 1,657.25

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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.