Home / 7,180-9,908.56-4,387.04

Finding the Fourth Proportional to 7,180, 9,908.56 and 4,387.04

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Solution

The fourth proportional to 7,180, 9,908.56 and 4,387.04 is: 6,054.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180 : 9,908.56 = 4,387.04 : x
  2. Step 2: Convert to fraction form
    7,180/9,908.56 = 4,387.04/x
  3. Step 3: Cross multiply
    7,180x = 9,908.56 × 4,387.04
  4. Step 4: Simplify right side
    7,180x = 43,469,249.06
  5. Step 5: Solve for x
    x = 43,469,249.06/7,180
  6. Step 6: Final answer
    x = 6,054.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.