Home / 4,755.96-7,131.24-3,980.79

Finding the Fourth Proportional to 4,755.96, 7,131.24 and 3,980.79

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Solution

The fourth proportional to 4,755.96, 7,131.24 and 3,980.79 is: 5,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.96 : 7,131.24 = 3,980.79 : x
  2. Step 2: Convert to fraction form
    4,755.96/7,131.24 = 3,980.79/x
  3. Step 3: Cross multiply
    4,755.96x = 7,131.24 × 3,980.79
  4. Step 4: Simplify right side
    4,755.96x = 28,387,968.88
  5. Step 5: Solve for x
    x = 28,387,968.88/4,755.96
  6. Step 6: Final answer
    x = 5,968.93

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1.5x scale

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.