Home / 1,747.39-2,411.40-961.43

Finding the Fourth Proportional to 1,747.39, 2,411.40 and 961.43

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Solution

The fourth proportional to 1,747.39, 2,411.40 and 961.43 is: 1,326.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.39 : 2,411.40 = 961.43 : x
  2. Step 2: Convert to fraction form
    1,747.39/2,411.40 = 961.43/x
  3. Step 3: Cross multiply
    1,747.39x = 2,411.40 × 961.43
  4. Step 4: Simplify right side
    1,747.39x = 2,318,392.30
  5. Step 5: Solve for x
    x = 2,318,392.30/1,747.39
  6. Step 6: Final answer
    x = 1,326.78

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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.