Home / 5,120.54-7,668.51-2,922.60

Finding the Fourth Proportional to 5,120.54, 7,668.51 and 2,922.60

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Solution

The fourth proportional to 5,120.54, 7,668.51 and 2,922.60 is: 4,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.54 : 7,668.51 = 2,922.60 : x
  2. Step 2: Convert to fraction form
    5,120.54/7,668.51 = 2,922.60/x
  3. Step 3: Cross multiply
    5,120.54x = 7,668.51 × 2,922.60
  4. Step 4: Simplify right side
    5,120.54x = 22,412,005.12
  5. Step 5: Solve for x
    x = 22,412,005.12/5,120.54
  6. Step 6: Final answer
    x = 4,376.88

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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.