Home / 5,949.36-8,211.48-3,960

Finding the Fourth Proportional to 5,949.36, 8,211.48 and 3,960

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Solution

The fourth proportional to 5,949.36, 8,211.48 and 3,960 is: 5,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,949.36 : 8,211.48 = 3,960 : x
  2. Step 2: Convert to fraction form
    5,949.36/8,211.48 = 3,960/x
  3. Step 3: Cross multiply
    5,949.36x = 8,211.48 × 3,960
  4. Step 4: Simplify right side
    5,949.36x = 32,517,460.80
  5. Step 5: Solve for x
    x = 32,517,460.80/5,949.36
  6. Step 6: Final answer
    x = 5,465.71

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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.