Home / 1,999.33-3,001.73-1,272.15

Finding the Fourth Proportional to 1,999.33, 3,001.73 and 1,272.15

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Solution

The fourth proportional to 1,999.33, 3,001.73 and 1,272.15 is: 1,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.33 : 3,001.73 = 1,272.15 : x
  2. Step 2: Convert to fraction form
    1,999.33/3,001.73 = 1,272.15/x
  3. Step 3: Cross multiply
    1,999.33x = 3,001.73 × 1,272.15
  4. Step 4: Simplify right side
    1,999.33x = 3,818,644.46
  5. Step 5: Solve for x
    x = 3,818,644.46/1,999.33
  6. Step 6: Final answer
    x = 1,909.96

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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.