Home / 1,982.86-2,736.32-1,098.66

Finding the Fourth Proportional to 1,982.86, 2,736.32 and 1,098.66

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Solution

The fourth proportional to 1,982.86, 2,736.32 and 1,098.66 is: 1,516.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.86 : 2,736.32 = 1,098.66 : x
  2. Step 2: Convert to fraction form
    1,982.86/2,736.32 = 1,098.66/x
  3. Step 3: Cross multiply
    1,982.86x = 2,736.32 × 1,098.66
  4. Step 4: Simplify right side
    1,982.86x = 3,006,285.33
  5. Step 5: Solve for x
    x = 3,006,285.33/1,982.86
  6. Step 6: Final answer
    x = 1,516.14

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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.