Home / 2,193.53-3,291.21-961.82

Finding the Fourth Proportional to 2,193.53, 3,291.21 and 961.82

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Solution

The fourth proportional to 2,193.53, 3,291.21 and 961.82 is: 1,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.53 : 3,291.21 = 961.82 : x
  2. Step 2: Convert to fraction form
    2,193.53/3,291.21 = 961.82/x
  3. Step 3: Cross multiply
    2,193.53x = 3,291.21 × 961.82
  4. Step 4: Simplify right side
    2,193.53x = 3,165,566.00
  5. Step 5: Solve for x
    x = 3,165,566.00/2,193.53
  6. Step 6: Final answer
    x = 1,443.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.