Home / 1,450.72-1,999.92-1,036

Finding the Fourth Proportional to 1,450.72, 1,999.92 and 1,036

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Solution

The fourth proportional to 1,450.72, 1,999.92 and 1,036 is: 1,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.72 : 1,999.92 = 1,036 : x
  2. Step 2: Convert to fraction form
    1,450.72/1,999.92 = 1,036/x
  3. Step 3: Cross multiply
    1,450.72x = 1,999.92 × 1,036
  4. Step 4: Simplify right side
    1,450.72x = 2,071,917.12
  5. Step 5: Solve for x
    x = 2,071,917.12/1,450.72
  6. Step 6: Final answer
    x = 1,428.20

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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.