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Finding the Fourth Proportional to 3,517.69, 4,854.51 and 1,945.89

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Solution

The fourth proportional to 3,517.69, 4,854.51 and 1,945.89 is: 2,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.69 : 4,854.51 = 1,945.89 : x
  2. Step 2: Convert to fraction form
    3,517.69/4,854.51 = 1,945.89/x
  3. Step 3: Cross multiply
    3,517.69x = 4,854.51 × 1,945.89
  4. Step 4: Simplify right side
    3,517.69x = 9,446,318.19
  5. Step 5: Solve for x
    x = 9,446,318.19/3,517.69
  6. Step 6: Final answer
    x = 2,685.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.