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Finding the Fourth Proportional to 3,654.73, 5,482.61 and 1,188.76

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Solution

The fourth proportional to 3,654.73, 5,482.61 and 1,188.76 is: 1,783.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.73 : 5,482.61 = 1,188.76 : x
  2. Step 2: Convert to fraction form
    3,654.73/5,482.61 = 1,188.76/x
  3. Step 3: Cross multiply
    3,654.73x = 5,482.61 × 1,188.76
  4. Step 4: Simplify right side
    3,654.73x = 6,517,507.46
  5. Step 5: Solve for x
    x = 6,517,507.46/3,654.73
  6. Step 6: Final answer
    x = 1,783.31

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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.