Home / 5,180.42-7,147.04-3,318.50

Finding the Fourth Proportional to 5,180.42, 7,147.04 and 3,318.50

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Solution

The fourth proportional to 5,180.42, 7,147.04 and 3,318.50 is: 4,578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.42 : 7,147.04 = 3,318.50 : x
  2. Step 2: Convert to fraction form
    5,180.42/7,147.04 = 3,318.50/x
  3. Step 3: Cross multiply
    5,180.42x = 7,147.04 × 3,318.50
  4. Step 4: Simplify right side
    5,180.42x = 23,717,452.24
  5. Step 5: Solve for x
    x = 23,717,452.24/5,180.42
  6. Step 6: Final answer
    x = 4,578.29

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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.