Home / 2,731.26-3,769.12-1,489.26

Finding the Fourth Proportional to 2,731.26, 3,769.12 and 1,489.26

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Solution

The fourth proportional to 2,731.26, 3,769.12 and 1,489.26 is: 2,055.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.26 : 3,769.12 = 1,489.26 : x
  2. Step 2: Convert to fraction form
    2,731.26/3,769.12 = 1,489.26/x
  3. Step 3: Cross multiply
    2,731.26x = 3,769.12 × 1,489.26
  4. Step 4: Simplify right side
    2,731.26x = 5,613,199.65
  5. Step 5: Solve for x
    x = 5,613,199.65/2,731.26
  6. Step 6: Final answer
    x = 2,055.17

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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.