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Finding the Fourth Proportional to 3,898.22, 5,844.06 and 1,556.78

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Solution

The fourth proportional to 3,898.22, 5,844.06 and 1,556.78 is: 2,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.22 : 5,844.06 = 1,556.78 : x
  2. Step 2: Convert to fraction form
    3,898.22/5,844.06 = 1,556.78/x
  3. Step 3: Cross multiply
    3,898.22x = 5,844.06 × 1,556.78
  4. Step 4: Simplify right side
    3,898.22x = 9,097,886.51
  5. Step 5: Solve for x
    x = 9,097,886.51/3,898.22
  6. Step 6: Final answer
    x = 2,333.86

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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.