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Finding the Fourth Proportional to 3,864.15, 5,795.01 and 1,399.32

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Solution

The fourth proportional to 3,864.15, 5,795.01 and 1,399.32 is: 2,098.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.15 : 5,795.01 = 1,399.32 : x
  2. Step 2: Convert to fraction form
    3,864.15/5,795.01 = 1,399.32/x
  3. Step 3: Cross multiply
    3,864.15x = 5,795.01 × 1,399.32
  4. Step 4: Simplify right side
    3,864.15x = 8,109,073.39
  5. Step 5: Solve for x
    x = 8,109,073.39/3,864.15
  6. Step 6: Final answer
    x = 2,098.54

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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.