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Finding the Fourth Proportional to 3,097.09, 4,645.62 and 757.11

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Solution

The fourth proportional to 3,097.09, 4,645.62 and 757.11 is: 1,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.09 : 4,645.62 = 757.11 : x
  2. Step 2: Convert to fraction form
    3,097.09/4,645.62 = 757.11/x
  3. Step 3: Cross multiply
    3,097.09x = 4,645.62 × 757.11
  4. Step 4: Simplify right side
    3,097.09x = 3,517,221.18
  5. Step 5: Solve for x
    x = 3,517,221.18/3,097.09
  6. Step 6: Final answer
    x = 1,135.65

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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.