Home / 6,828.80-10,243.20-4,755.20

Finding the Fourth Proportional to 6,828.80, 10,243.20 and 4,755.20

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Solution

The fourth proportional to 6,828.80, 10,243.20 and 4,755.20 is: 7,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,828.80 : 10,243.20 = 4,755.20 : x
  2. Step 2: Convert to fraction form
    6,828.80/10,243.20 = 4,755.20/x
  3. Step 3: Cross multiply
    6,828.80x = 10,243.20 × 4,755.20
  4. Step 4: Simplify right side
    6,828.80x = 48,708,464.64
  5. Step 5: Solve for x
    x = 48,708,464.64/6,828.80
  6. Step 6: Final answer
    x = 7,132.80

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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.