Home / 7,321.73-10,981.40-2,057.10

Finding the Fourth Proportional to 7,321.73, 10,981.40 and 2,057.10

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Solution

The fourth proportional to 7,321.73, 10,981.40 and 2,057.10 is: 3,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.73 : 10,981.40 = 2,057.10 : x
  2. Step 2: Convert to fraction form
    7,321.73/10,981.40 = 2,057.10/x
  3. Step 3: Cross multiply
    7,321.73x = 10,981.40 × 2,057.10
  4. Step 4: Simplify right side
    7,321.73x = 22,589,837.94
  5. Step 5: Solve for x
    x = 22,589,837.94/7,321.73
  6. Step 6: Final answer
    x = 3,085.31

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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.