Home / 4,821-7,231.47-3,853.23

Finding the Fourth Proportional to 4,821, 7,231.47 and 3,853.23

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Solution

The fourth proportional to 4,821, 7,231.47 and 3,853.23 is: 5,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821 : 7,231.47 = 3,853.23 : x
  2. Step 2: Convert to fraction form
    4,821/7,231.47 = 3,853.23/x
  3. Step 3: Cross multiply
    4,821x = 7,231.47 × 3,853.23
  4. Step 4: Simplify right side
    4,821x = 27,864,517.15
  5. Step 5: Solve for x
    x = 27,864,517.15/4,821
  6. Step 6: Final answer
    x = 5,779.82

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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.