Home / 3,992.45-5,509.40-2,224.01

Finding the Fourth Proportional to 3,992.45, 5,509.40 and 2,224.01

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Solution

The fourth proportional to 3,992.45, 5,509.40 and 2,224.01 is: 3,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.45 : 5,509.40 = 2,224.01 : x
  2. Step 2: Convert to fraction form
    3,992.45/5,509.40 = 2,224.01/x
  3. Step 3: Cross multiply
    3,992.45x = 5,509.40 × 2,224.01
  4. Step 4: Simplify right side
    3,992.45x = 12,252,922.03
  5. Step 5: Solve for x
    x = 12,252,922.03/3,992.45
  6. Step 6: Final answer
    x = 3,069.03

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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.