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Finding the Fourth Proportional to 3,455.94, 5,180.06 and 1,375.39

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Solution

The fourth proportional to 3,455.94, 5,180.06 and 1,375.39 is: 2,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.94 : 5,180.06 = 1,375.39 : x
  2. Step 2: Convert to fraction form
    3,455.94/5,180.06 = 1,375.39/x
  3. Step 3: Cross multiply
    3,455.94x = 5,180.06 × 1,375.39
  4. Step 4: Simplify right side
    3,455.94x = 7,124,602.72
  5. Step 5: Solve for x
    x = 7,124,602.72/3,455.94
  6. Step 6: Final answer
    x = 2,061.55

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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.