Home / 5,218.85-7,822.80-3,244.47

Finding the Fourth Proportional to 5,218.85, 7,822.80 and 3,244.47

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Solution

The fourth proportional to 5,218.85, 7,822.80 and 3,244.47 is: 4,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.85 : 7,822.80 = 3,244.47 : x
  2. Step 2: Convert to fraction form
    5,218.85/7,822.80 = 3,244.47/x
  3. Step 3: Cross multiply
    5,218.85x = 7,822.80 × 3,244.47
  4. Step 4: Simplify right side
    5,218.85x = 25,380,839.92
  5. Step 5: Solve for x
    x = 25,380,839.92/5,218.85
  6. Step 6: Final answer
    x = 4,863.31

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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.