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Finding the Fourth Proportional to 3,654.93, 5,471.07 and 2,955.78

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Solution

The fourth proportional to 3,654.93, 5,471.07 and 2,955.78 is: 4,424.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.93 : 5,471.07 = 2,955.78 : x
  2. Step 2: Convert to fraction form
    3,654.93/5,471.07 = 2,955.78/x
  3. Step 3: Cross multiply
    3,654.93x = 5,471.07 × 2,955.78
  4. Step 4: Simplify right side
    3,654.93x = 16,171,279.28
  5. Step 5: Solve for x
    x = 16,171,279.28/3,654.93
  6. Step 6: Final answer
    x = 4,424.51

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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.