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Finding the Fourth Proportional to 3,468, 5,202 and 1,388.94

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Solution

The fourth proportional to 3,468, 5,202 and 1,388.94 is: 2,083.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468 : 5,202 = 1,388.94 : x
  2. Step 2: Convert to fraction form
    3,468/5,202 = 1,388.94/x
  3. Step 3: Cross multiply
    3,468x = 5,202 × 1,388.94
  4. Step 4: Simplify right side
    3,468x = 7,225,265.88
  5. Step 5: Solve for x
    x = 7,225,265.88/3,468
  6. Step 6: Final answer
    x = 2,083.41

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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.