Home / 5,121.43-7,071.96-3,236.29

Finding the Fourth Proportional to 5,121.43, 7,071.96 and 3,236.29

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Solution

The fourth proportional to 5,121.43, 7,071.96 and 3,236.29 is: 4,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.43 : 7,071.96 = 3,236.29 : x
  2. Step 2: Convert to fraction form
    5,121.43/7,071.96 = 3,236.29/x
  3. Step 3: Cross multiply
    5,121.43x = 7,071.96 × 3,236.29
  4. Step 4: Simplify right side
    5,121.43x = 22,886,913.43
  5. Step 5: Solve for x
    x = 22,886,913.43/5,121.43
  6. Step 6: Final answer
    x = 4,468.85

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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.