Home / 2,321.06-3,481.27-761.13

Finding the Fourth Proportional to 2,321.06, 3,481.27 and 761.13

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Solution

The fourth proportional to 2,321.06, 3,481.27 and 761.13 is: 1,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.06 : 3,481.27 = 761.13 : x
  2. Step 2: Convert to fraction form
    2,321.06/3,481.27 = 761.13/x
  3. Step 3: Cross multiply
    2,321.06x = 3,481.27 × 761.13
  4. Step 4: Simplify right side
    2,321.06x = 2,649,710.19
  5. Step 5: Solve for x
    x = 2,649,710.19/2,321.06
  6. Step 6: Final answer
    x = 1,141.60

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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.