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Finding the Fourth Proportional to 3,165.08, 4,368 and 1,767.92

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Solution

The fourth proportional to 3,165.08, 4,368 and 1,767.92 is: 2,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.08 : 4,368 = 1,767.92 : x
  2. Step 2: Convert to fraction form
    3,165.08/4,368 = 1,767.92/x
  3. Step 3: Cross multiply
    3,165.08x = 4,368 × 1,767.92
  4. Step 4: Simplify right side
    3,165.08x = 7,722,274.56
  5. Step 5: Solve for x
    x = 7,722,274.56/3,165.08
  6. Step 6: Final answer
    x = 2,439.84

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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.