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Finding the Fourth Proportional to 3,888.29, 5,832.00 and 1,388.94

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Solution

The fourth proportional to 3,888.29, 5,832.00 and 1,388.94 is: 2,083.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.29 : 5,832.00 = 1,388.94 : x
  2. Step 2: Convert to fraction form
    3,888.29/5,832.00 = 1,388.94/x
  3. Step 3: Cross multiply
    3,888.29x = 5,832.00 × 1,388.94
  4. Step 4: Simplify right side
    3,888.29x = 8,100,301.55
  5. Step 5: Solve for x
    x = 8,100,301.55/3,888.29
  6. Step 6: Final answer
    x = 2,083.26

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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.