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Finding the Fourth Proportional to 3,852.76, 5,775.48 and 1,253.89

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Solution

The fourth proportional to 3,852.76, 5,775.48 and 1,253.89 is: 1,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.76 : 5,775.48 = 1,253.89 : x
  2. Step 2: Convert to fraction form
    3,852.76/5,775.48 = 1,253.89/x
  3. Step 3: Cross multiply
    3,852.76x = 5,775.48 × 1,253.89
  4. Step 4: Simplify right side
    3,852.76x = 7,241,816.62
  5. Step 5: Solve for x
    x = 7,241,816.62/3,852.76
  6. Step 6: Final answer
    x = 1,879.64

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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.