Home / 2,231.96-3,080-1,237.28

Finding the Fourth Proportional to 2,231.96, 3,080 and 1,237.28

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Solution

The fourth proportional to 2,231.96, 3,080 and 1,237.28 is: 1,707.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.96 : 3,080 = 1,237.28 : x
  2. Step 2: Convert to fraction form
    2,231.96/3,080 = 1,237.28/x
  3. Step 3: Cross multiply
    2,231.96x = 3,080 × 1,237.28
  4. Step 4: Simplify right side
    2,231.96x = 3,810,822.40
  5. Step 5: Solve for x
    x = 3,810,822.40/2,231.96
  6. Step 6: Final answer
    x = 1,707.39

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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.