Home / 5,729.36-7,906.13-3,211.04

Finding the Fourth Proportional to 5,729.36, 7,906.13 and 3,211.04

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Solution

The fourth proportional to 5,729.36, 7,906.13 and 3,211.04 is: 4,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.36 : 7,906.13 = 3,211.04 : x
  2. Step 2: Convert to fraction form
    5,729.36/7,906.13 = 3,211.04/x
  3. Step 3: Cross multiply
    5,729.36x = 7,906.13 × 3,211.04
  4. Step 4: Simplify right side
    5,729.36x = 25,386,883.62
  5. Step 5: Solve for x
    x = 25,386,883.62/5,729.36
  6. Step 6: Final answer
    x = 4,431.02

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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.