Home / 7,351.20-11,026.80-2,157.48

Finding the Fourth Proportional to 7,351.20, 11,026.80 and 2,157.48

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Solution

The fourth proportional to 7,351.20, 11,026.80 and 2,157.48 is: 3,236.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.20 : 11,026.80 = 2,157.48 : x
  2. Step 2: Convert to fraction form
    7,351.20/11,026.80 = 2,157.48/x
  3. Step 3: Cross multiply
    7,351.20x = 11,026.80 × 2,157.48
  4. Step 4: Simplify right side
    7,351.20x = 23,790,100.46
  5. Step 5: Solve for x
    x = 23,790,100.46/7,351.20
  6. Step 6: Final answer
    x = 3,236.22

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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.