Home / 1,448.22-1,999.50-1,116.06

Finding the Fourth Proportional to 1,448.22, 1,999.50 and 1,116.06

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Solution

The fourth proportional to 1,448.22, 1,999.50 and 1,116.06 is: 1,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.22 : 1,999.50 = 1,116.06 : x
  2. Step 2: Convert to fraction form
    1,448.22/1,999.50 = 1,116.06/x
  3. Step 3: Cross multiply
    1,448.22x = 1,999.50 × 1,116.06
  4. Step 4: Simplify right side
    1,448.22x = 2,231,561.97
  5. Step 5: Solve for x
    x = 2,231,561.97/1,448.22
  6. Step 6: Final answer
    x = 1,540.90

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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.