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Finding the Fourth Proportional to 3,369, 4,646.94 and 2,187.96

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Solution

The fourth proportional to 3,369, 4,646.94 and 2,187.96 is: 3,017.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369 : 4,646.94 = 2,187.96 : x
  2. Step 2: Convert to fraction form
    3,369/4,646.94 = 2,187.96/x
  3. Step 3: Cross multiply
    3,369x = 4,646.94 × 2,187.96
  4. Step 4: Simplify right side
    3,369x = 10,167,318.84
  5. Step 5: Solve for x
    x = 10,167,318.84/3,369
  6. Step 6: Final answer
    x = 3,017.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.