Home / 5,168.88-7,133.20-3,180.60

Finding the Fourth Proportional to 5,168.88, 7,133.20 and 3,180.60

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Solution

The fourth proportional to 5,168.88, 7,133.20 and 3,180.60 is: 4,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.88 : 7,133.20 = 3,180.60 : x
  2. Step 2: Convert to fraction form
    5,168.88/7,133.20 = 3,180.60/x
  3. Step 3: Cross multiply
    5,168.88x = 7,133.20 × 3,180.60
  4. Step 4: Simplify right side
    5,168.88x = 22,687,855.92
  5. Step 5: Solve for x
    x = 22,687,855.92/5,168.88
  6. Step 6: Final answer
    x = 4,389.32

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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.