Home / 2,709.91-3,739.73-1,531.09

Finding the Fourth Proportional to 2,709.91, 3,739.73 and 1,531.09

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Solution

The fourth proportional to 2,709.91, 3,739.73 and 1,531.09 is: 2,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.91 : 3,739.73 = 1,531.09 : x
  2. Step 2: Convert to fraction form
    2,709.91/3,739.73 = 1,531.09/x
  3. Step 3: Cross multiply
    2,709.91x = 3,739.73 × 1,531.09
  4. Step 4: Simplify right side
    2,709.91x = 5,725,863.21
  5. Step 5: Solve for x
    x = 5,725,863.21/2,709.91
  6. Step 6: Final answer
    x = 2,112.93

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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.