Home / 2,231.42-3,079.54-1,237.02

Finding the Fourth Proportional to 2,231.42, 3,079.54 and 1,237.02

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Solution

The fourth proportional to 2,231.42, 3,079.54 and 1,237.02 is: 1,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.42 : 3,079.54 = 1,237.02 : x
  2. Step 2: Convert to fraction form
    2,231.42/3,079.54 = 1,237.02/x
  3. Step 3: Cross multiply
    2,231.42x = 3,079.54 × 1,237.02
  4. Step 4: Simplify right side
    2,231.42x = 3,809,456.44
  5. Step 5: Solve for x
    x = 3,809,456.44/2,231.42
  6. Step 6: Final answer
    x = 1,707.19

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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.