Home / 5,218.02-7,821.56-3,829.28

Finding the Fourth Proportional to 5,218.02, 7,821.56 and 3,829.28

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Solution

The fourth proportional to 5,218.02, 7,821.56 and 3,829.28 is: 5,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.02 : 7,821.56 = 3,829.28 : x
  2. Step 2: Convert to fraction form
    5,218.02/7,821.56 = 3,829.28/x
  3. Step 3: Cross multiply
    5,218.02x = 7,821.56 × 3,829.28
  4. Step 4: Simplify right side
    5,218.02x = 29,950,913.74
  5. Step 5: Solve for x
    x = 29,950,913.74/5,218.02
  6. Step 6: Final answer
    x = 5,739.90

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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.