Home / 5,122.40-7,682.42-2,002.48

Finding the Fourth Proportional to 5,122.40, 7,682.42 and 2,002.48

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Solution

The fourth proportional to 5,122.40, 7,682.42 and 2,002.48 is: 3,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.40 : 7,682.42 = 2,002.48 : x
  2. Step 2: Convert to fraction form
    5,122.40/7,682.42 = 2,002.48/x
  3. Step 3: Cross multiply
    5,122.40x = 7,682.42 × 2,002.48
  4. Step 4: Simplify right side
    5,122.40x = 15,383,892.40
  5. Step 5: Solve for x
    x = 15,383,892.40/5,122.40
  6. Step 6: Final answer
    x = 3,003.26

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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.