Home / 3,153.07-4,729.87-961.82

Finding the Fourth Proportional to 3,153.07, 4,729.87 and 961.82

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Solution

The fourth proportional to 3,153.07, 4,729.87 and 961.82 is: 1,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.07 : 4,729.87 = 961.82 : x
  2. Step 2: Convert to fraction form
    3,153.07/4,729.87 = 961.82/x
  3. Step 3: Cross multiply
    3,153.07x = 4,729.87 × 961.82
  4. Step 4: Simplify right side
    3,153.07x = 4,549,283.56
  5. Step 5: Solve for x
    x = 4,549,283.56/3,153.07
  6. Step 6: Final answer
    x = 1,442.81

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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.