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Finding the Fourth Proportional to 1,747.44, 2,411.38 and 961.36

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Solution

The fourth proportional to 1,747.44, 2,411.38 and 961.36 is: 1,326.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.44 : 2,411.38 = 961.36 : x
  2. Step 2: Convert to fraction form
    1,747.44/2,411.38 = 961.36/x
  3. Step 3: Cross multiply
    1,747.44x = 2,411.38 × 961.36
  4. Step 4: Simplify right side
    1,747.44x = 2,318,204.28
  5. Step 5: Solve for x
    x = 2,318,204.28/1,747.44
  6. Step 6: Final answer
    x = 1,326.63

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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.