Home / 5,151.88-7,708.38-2,961.64

Finding the Fourth Proportional to 5,151.88, 7,708.38 and 2,961.64

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Solution

The fourth proportional to 5,151.88, 7,708.38 and 2,961.64 is: 4,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.88 : 7,708.38 = 2,961.64 : x
  2. Step 2: Convert to fraction form
    5,151.88/7,708.38 = 2,961.64/x
  3. Step 3: Cross multiply
    5,151.88x = 7,708.38 × 2,961.64
  4. Step 4: Simplify right side
    5,151.88x = 22,829,446.54
  5. Step 5: Solve for x
    x = 22,829,446.54/5,151.88
  6. Step 6: Final answer
    x = 4,431.28

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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.