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Finding the Fourth Proportional to 3,397.78, 5,094.06 and 1,641.88

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Solution

The fourth proportional to 3,397.78, 5,094.06 and 1,641.88 is: 2,461.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.78 : 5,094.06 = 1,641.88 : x
  2. Step 2: Convert to fraction form
    3,397.78/5,094.06 = 1,641.88/x
  3. Step 3: Cross multiply
    3,397.78x = 5,094.06 × 1,641.88
  4. Step 4: Simplify right side
    3,397.78x = 8,363,835.23
  5. Step 5: Solve for x
    x = 8,363,835.23/3,397.78
  6. Step 6: Final answer
    x = 2,461.56

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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.