Home / 5,728.93-7,906.21-3,211.04

Finding the Fourth Proportional to 5,728.93, 7,906.21 and 3,211.04

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Solution

The fourth proportional to 5,728.93, 7,906.21 and 3,211.04 is: 4,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.93 : 7,906.21 = 3,211.04 : x
  2. Step 2: Convert to fraction form
    5,728.93/7,906.21 = 3,211.04/x
  3. Step 3: Cross multiply
    5,728.93x = 7,906.21 × 3,211.04
  4. Step 4: Simplify right side
    5,728.93x = 25,387,168.30
  5. Step 5: Solve for x
    x = 25,387,168.30/5,728.93
  6. Step 6: Final answer
    x = 4,431.40

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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.