Home / 5,179.98-7,148.79-3,191.22

Finding the Fourth Proportional to 5,179.98, 7,148.79 and 3,191.22

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Solution

The fourth proportional to 5,179.98, 7,148.79 and 3,191.22 is: 4,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.98 : 7,148.79 = 3,191.22 : x
  2. Step 2: Convert to fraction form
    5,179.98/7,148.79 = 3,191.22/x
  3. Step 3: Cross multiply
    5,179.98x = 7,148.79 × 3,191.22
  4. Step 4: Simplify right side
    5,179.98x = 22,813,361.62
  5. Step 5: Solve for x
    x = 22,813,361.62/5,179.98
  6. Step 6: Final answer
    x = 4,404.14

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1.5x scale

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.