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Finding the Fourth Proportional to 2,976.14, 4,464.24 and 785.18

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Solution

The fourth proportional to 2,976.14, 4,464.24 and 785.18 is: 1,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.14 : 4,464.24 = 785.18 : x
  2. Step 2: Convert to fraction form
    2,976.14/4,464.24 = 785.18/x
  3. Step 3: Cross multiply
    2,976.14x = 4,464.24 × 785.18
  4. Step 4: Simplify right side
    2,976.14x = 3,505,231.96
  5. Step 5: Solve for x
    x = 3,505,231.96/2,976.14
  6. Step 6: Final answer
    x = 1,177.78

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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.