Home / 1,206.32-1,663.11-1,083.31

Finding the Fourth Proportional to 1,206.32, 1,663.11 and 1,083.31

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Solution

The fourth proportional to 1,206.32, 1,663.11 and 1,083.31 is: 1,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.32 : 1,663.11 = 1,083.31 : x
  2. Step 2: Convert to fraction form
    1,206.32/1,663.11 = 1,083.31/x
  3. Step 3: Cross multiply
    1,206.32x = 1,663.11 × 1,083.31
  4. Step 4: Simplify right side
    1,206.32x = 1,801,659.54
  5. Step 5: Solve for x
    x = 1,801,659.54/1,206.32
  6. Step 6: Final answer
    x = 1,493.52

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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.