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Finding the Fourth Proportional to 3,904, 5,856.32 and 1,168

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Solution

The fourth proportional to 3,904, 5,856.32 and 1,168 is: 1,752.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904 : 5,856.32 = 1,168 : x
  2. Step 2: Convert to fraction form
    3,904/5,856.32 = 1,168/x
  3. Step 3: Cross multiply
    3,904x = 5,856.32 × 1,168
  4. Step 4: Simplify right side
    3,904x = 6,840,181.76
  5. Step 5: Solve for x
    x = 6,840,181.76/3,904
  6. Step 6: Final answer
    x = 1,752.10

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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.