Home / 2,731.07-3,768.87-1,489.07

Finding the Fourth Proportional to 2,731.07, 3,768.87 and 1,489.07

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Solution

The fourth proportional to 2,731.07, 3,768.87 and 1,489.07 is: 2,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.07 : 3,768.87 = 1,489.07 : x
  2. Step 2: Convert to fraction form
    2,731.07/3,768.87 = 1,489.07/x
  3. Step 3: Cross multiply
    2,731.07x = 3,768.87 × 1,489.07
  4. Step 4: Simplify right side
    2,731.07x = 5,612,092.41
  5. Step 5: Solve for x
    x = 5,612,092.41/2,731.07
  6. Step 6: Final answer
    x = 2,054.91

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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.