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Finding the Fourth Proportional to 3,888.00, 5,365.55 and 2,375.81

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Solution

The fourth proportional to 3,888.00, 5,365.55 and 2,375.81 is: 3,278.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.00 : 5,365.55 = 2,375.81 : x
  2. Step 2: Convert to fraction form
    3,888.00/5,365.55 = 2,375.81/x
  3. Step 3: Cross multiply
    3,888.00x = 5,365.55 × 2,375.81
  4. Step 4: Simplify right side
    3,888.00x = 12,747,526.58
  5. Step 5: Solve for x
    x = 12,747,526.58/3,888.00
  6. Step 6: Final answer
    x = 3,278.68

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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.