Home / 1,981.64-2,732.66-1,450.61

Finding the Fourth Proportional to 1,981.64, 2,732.66 and 1,450.61

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Solution

The fourth proportional to 1,981.64, 2,732.66 and 1,450.61 is: 2,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.64 : 2,732.66 = 1,450.61 : x
  2. Step 2: Convert to fraction form
    1,981.64/2,732.66 = 1,450.61/x
  3. Step 3: Cross multiply
    1,981.64x = 2,732.66 × 1,450.61
  4. Step 4: Simplify right side
    1,981.64x = 3,964,010.26
  5. Step 5: Solve for x
    x = 3,964,010.26/1,981.64
  6. Step 6: Final answer
    x = 2,000.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.