Home / 3,654.87-5,482.35-1,189.70

Finding the Fourth Proportional to 3,654.87, 5,482.35 and 1,189.70

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Solution

The fourth proportional to 3,654.87, 5,482.35 and 1,189.70 is: 1,784.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.87 : 5,482.35 = 1,189.70 : x
  2. Step 2: Convert to fraction form
    3,654.87/5,482.35 = 1,189.70/x
  3. Step 3: Cross multiply
    3,654.87x = 5,482.35 × 1,189.70
  4. Step 4: Simplify right side
    3,654.87x = 6,522,318.43
  5. Step 5: Solve for x
    x = 6,522,318.43/3,654.87
  6. Step 6: Final answer
    x = 1,784.56

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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.