Home / 1,323.09-1,982.97-1,008.39

Finding the Fourth Proportional to 1,323.09, 1,982.97 and 1,008.39

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Solution

The fourth proportional to 1,323.09, 1,982.97 and 1,008.39 is: 1,511.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.09 : 1,982.97 = 1,008.39 : x
  2. Step 2: Convert to fraction form
    1,323.09/1,982.97 = 1,008.39/x
  3. Step 3: Cross multiply
    1,323.09x = 1,982.97 × 1,008.39
  4. Step 4: Simplify right side
    1,323.09x = 1,999,607.12
  5. Step 5: Solve for x
    x = 1,999,607.12/1,323.09
  6. Step 6: Final answer
    x = 1,511.32

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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.