Home / 3,427.13-5,140.67-961.94

Finding the Fourth Proportional to 3,427.13, 5,140.67 and 961.94

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Solution

The fourth proportional to 3,427.13, 5,140.67 and 961.94 is: 1,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.13 : 5,140.67 = 961.94 : x
  2. Step 2: Convert to fraction form
    3,427.13/5,140.67 = 961.94/x
  3. Step 3: Cross multiply
    3,427.13x = 5,140.67 × 961.94
  4. Step 4: Simplify right side
    3,427.13x = 4,945,024.14
  5. Step 5: Solve for x
    x = 4,945,024.14/3,427.13
  6. Step 6: Final answer
    x = 1,442.90

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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.