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Finding the Fourth Proportional to 3,097.97, 4,646.97 and 789.47

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Solution

The fourth proportional to 3,097.97, 4,646.97 and 789.47 is: 1,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.97 : 4,646.97 = 789.47 : x
  2. Step 2: Convert to fraction form
    3,097.97/4,646.97 = 789.47/x
  3. Step 3: Cross multiply
    3,097.97x = 4,646.97 × 789.47
  4. Step 4: Simplify right side
    3,097.97x = 3,668,655.02
  5. Step 5: Solve for x
    x = 3,668,655.02/3,097.97
  6. Step 6: Final answer
    x = 1,184.21

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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.