Home / 5,218.29-7,821.77-2,443.23

Finding the Fourth Proportional to 5,218.29, 7,821.77 and 2,443.23

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Solution

The fourth proportional to 5,218.29, 7,821.77 and 2,443.23 is: 3,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.29 : 7,821.77 = 2,443.23 : x
  2. Step 2: Convert to fraction form
    5,218.29/7,821.77 = 2,443.23/x
  3. Step 3: Cross multiply
    5,218.29x = 7,821.77 × 2,443.23
  4. Step 4: Simplify right side
    5,218.29x = 19,110,370.90
  5. Step 5: Solve for x
    x = 19,110,370.90/5,218.29
  6. Step 6: Final answer
    x = 3,662.19

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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.