Home / 5,189.20-7,786.68-3,242.32

Finding the Fourth Proportional to 5,189.20, 7,786.68 and 3,242.32

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Solution

The fourth proportional to 5,189.20, 7,786.68 and 3,242.32 is: 4,865.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.20 : 7,786.68 = 3,242.32 : x
  2. Step 2: Convert to fraction form
    5,189.20/7,786.68 = 3,242.32/x
  3. Step 3: Cross multiply
    5,189.20x = 7,786.68 × 3,242.32
  4. Step 4: Simplify right side
    5,189.20x = 25,246,908.30
  5. Step 5: Solve for x
    x = 25,246,908.30/5,189.20
  6. Step 6: Final answer
    x = 4,865.28

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1.5x scale

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.