Home / 5,121.48-7,662.24-3,892.44

Finding the Fourth Proportional to 5,121.48, 7,662.24 and 3,892.44

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Solution

The fourth proportional to 5,121.48, 7,662.24 and 3,892.44 is: 5,823.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.48 : 7,662.24 = 3,892.44 : x
  2. Step 2: Convert to fraction form
    5,121.48/7,662.24 = 3,892.44/x
  3. Step 3: Cross multiply
    5,121.48x = 7,662.24 × 3,892.44
  4. Step 4: Simplify right side
    5,121.48x = 29,824,809.47
  5. Step 5: Solve for x
    x = 29,824,809.47/5,121.48
  6. Step 6: Final answer
    x = 5,823.47

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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.