Home / 1,252.29-1,729.82-961.17

Finding the Fourth Proportional to 1,252.29, 1,729.82 and 961.17

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Solution

The fourth proportional to 1,252.29, 1,729.82 and 961.17 is: 1,327.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.29 : 1,729.82 = 961.17 : x
  2. Step 2: Convert to fraction form
    1,252.29/1,729.82 = 961.17/x
  3. Step 3: Cross multiply
    1,252.29x = 1,729.82 × 961.17
  4. Step 4: Simplify right side
    1,252.29x = 1,662,647.01
  5. Step 5: Solve for x
    x = 1,662,647.01/1,252.29
  6. Step 6: Final answer
    x = 1,327.68

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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.