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Finding the Fourth Proportional to 3,867.92, 5,804.32 and 1,646.75

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Solution

The fourth proportional to 3,867.92, 5,804.32 and 1,646.75 is: 2,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.92 : 5,804.32 = 1,646.75 : x
  2. Step 2: Convert to fraction form
    3,867.92/5,804.32 = 1,646.75/x
  3. Step 3: Cross multiply
    3,867.92x = 5,804.32 × 1,646.75
  4. Step 4: Simplify right side
    3,867.92x = 9,558,282.59
  5. Step 5: Solve for x
    x = 9,558,282.59/3,867.92
  6. Step 6: Final answer
    x = 2,471.17

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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.