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Finding the Fourth Proportional to 3,318.78, 4,966.62 and 2,726.67

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Solution

The fourth proportional to 3,318.78, 4,966.62 and 2,726.67 is: 4,080.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.78 : 4,966.62 = 2,726.67 : x
  2. Step 2: Convert to fraction form
    3,318.78/4,966.62 = 2,726.67/x
  3. Step 3: Cross multiply
    3,318.78x = 4,966.62 × 2,726.67
  4. Step 4: Simplify right side
    3,318.78x = 13,542,333.76
  5. Step 5: Solve for x
    x = 13,542,333.76/3,318.78
  6. Step 6: Final answer
    x = 4,080.52

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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.