Home / 5,151.36-7,729.44-2,231.52

Finding the Fourth Proportional to 5,151.36, 7,729.44 and 2,231.52

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Solution

The fourth proportional to 5,151.36, 7,729.44 and 2,231.52 is: 3,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.36 : 7,729.44 = 2,231.52 : x
  2. Step 2: Convert to fraction form
    5,151.36/7,729.44 = 2,231.52/x
  3. Step 3: Cross multiply
    5,151.36x = 7,729.44 × 2,231.52
  4. Step 4: Simplify right side
    5,151.36x = 17,248,399.95
  5. Step 5: Solve for x
    x = 17,248,399.95/5,151.36
  6. Step 6: Final answer
    x = 3,348.32

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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.