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Finding the Fourth Proportional to 4,775.78, 7,161.95 and 1,654.94

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Solution

The fourth proportional to 4,775.78, 7,161.95 and 1,654.94 is: 2,481.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.78 : 7,161.95 = 1,654.94 : x
  2. Step 2: Convert to fraction form
    4,775.78/7,161.95 = 1,654.94/x
  3. Step 3: Cross multiply
    4,775.78x = 7,161.95 × 1,654.94
  4. Step 4: Simplify right side
    4,775.78x = 11,852,553.45
  5. Step 5: Solve for x
    x = 11,852,553.45/4,775.78
  6. Step 6: Final answer
    x = 2,481.81

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1.5x scale

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.