Home / 1,634.25-2,255.13-961.95

Finding the Fourth Proportional to 1,634.25, 2,255.13 and 961.95

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Solution

The fourth proportional to 1,634.25, 2,255.13 and 961.95 is: 1,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.25 : 2,255.13 = 961.95 : x
  2. Step 2: Convert to fraction form
    1,634.25/2,255.13 = 961.95/x
  3. Step 3: Cross multiply
    1,634.25x = 2,255.13 × 961.95
  4. Step 4: Simplify right side
    1,634.25x = 2,169,322.30
  5. Step 5: Solve for x
    x = 2,169,322.30/1,634.25
  6. Step 6: Final answer
    x = 1,327.41

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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.