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Finding the Fourth Proportional to 3,488, 5,232.12 and 1,179.68

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Solution

The fourth proportional to 3,488, 5,232.12 and 1,179.68 is: 1,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488 : 5,232.12 = 1,179.68 : x
  2. Step 2: Convert to fraction form
    3,488/5,232.12 = 1,179.68/x
  3. Step 3: Cross multiply
    3,488x = 5,232.12 × 1,179.68
  4. Step 4: Simplify right side
    3,488x = 6,172,227.32
  5. Step 5: Solve for x
    x = 6,172,227.32/3,488
  6. Step 6: Final answer
    x = 1,769.56

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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.