Home / 5,739.57-7,921.44-3,222.72

Finding the Fourth Proportional to 5,739.57, 7,921.44 and 3,222.72

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Solution

The fourth proportional to 5,739.57, 7,921.44 and 3,222.72 is: 4,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.57 : 7,921.44 = 3,222.72 : x
  2. Step 2: Convert to fraction form
    5,739.57/7,921.44 = 3,222.72/x
  3. Step 3: Cross multiply
    5,739.57x = 7,921.44 × 3,222.72
  4. Step 4: Simplify right side
    5,739.57x = 25,528,583.12
  5. Step 5: Solve for x
    x = 25,528,583.12/5,739.57
  6. Step 6: Final answer
    x = 4,447.82

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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.