Home / 6,135.76-9,201.80-2,186.31

Finding the Fourth Proportional to 6,135.76, 9,201.80 and 2,186.31

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Solution

The fourth proportional to 6,135.76, 9,201.80 and 2,186.31 is: 3,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.76 : 9,201.80 = 2,186.31 : x
  2. Step 2: Convert to fraction form
    6,135.76/9,201.80 = 2,186.31/x
  3. Step 3: Cross multiply
    6,135.76x = 9,201.80 × 2,186.31
  4. Step 4: Simplify right side
    6,135.76x = 20,117,987.36
  5. Step 5: Solve for x
    x = 20,117,987.36/6,135.76
  6. Step 6: Final answer
    x = 3,278.81

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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.