Home / 1,634.12-2,255.10-961.96

Finding the Fourth Proportional to 1,634.12, 2,255.10 and 961.96

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Solution

The fourth proportional to 1,634.12, 2,255.10 and 961.96 is: 1,327.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.12 : 2,255.10 = 961.96 : x
  2. Step 2: Convert to fraction form
    1,634.12/2,255.10 = 961.96/x
  3. Step 3: Cross multiply
    1,634.12x = 2,255.10 × 961.96
  4. Step 4: Simplify right side
    1,634.12x = 2,169,323.20
  5. Step 5: Solve for x
    x = 2,169,323.20/1,634.12
  6. Step 6: Final answer
    x = 1,327.51

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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.