Home / 5,921.75-8,880.04-3,147.75

Finding the Fourth Proportional to 5,921.75, 8,880.04 and 3,147.75

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Solution

The fourth proportional to 5,921.75, 8,880.04 and 3,147.75 is: 4,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.75 : 8,880.04 = 3,147.75 : x
  2. Step 2: Convert to fraction form
    5,921.75/8,880.04 = 3,147.75/x
  3. Step 3: Cross multiply
    5,921.75x = 8,880.04 × 3,147.75
  4. Step 4: Simplify right side
    5,921.75x = 27,952,145.91
  5. Step 5: Solve for x
    x = 27,952,145.91/5,921.75
  6. Step 6: Final answer
    x = 4,720.25

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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.