Home / 7,121.36-10,677-2,735.12

Finding the Fourth Proportional to 7,121.36, 10,677 and 2,735.12

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Solution

The fourth proportional to 7,121.36, 10,677 and 2,735.12 is: 4,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.36 : 10,677 = 2,735.12 : x
  2. Step 2: Convert to fraction form
    7,121.36/10,677 = 2,735.12/x
  3. Step 3: Cross multiply
    7,121.36x = 10,677 × 2,735.12
  4. Step 4: Simplify right side
    7,121.36x = 29,202,876.24
  5. Step 5: Solve for x
    x = 29,202,876.24/7,121.36
  6. Step 6: Final answer
    x = 4,100.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.