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Finding the Fourth Proportional to 2,339.89, 3,512.04 and 1,721.71

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Solution

The fourth proportional to 2,339.89, 3,512.04 and 1,721.71 is: 2,584.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.89 : 3,512.04 = 1,721.71 : x
  2. Step 2: Convert to fraction form
    2,339.89/3,512.04 = 1,721.71/x
  3. Step 3: Cross multiply
    2,339.89x = 3,512.04 × 1,721.71
  4. Step 4: Simplify right side
    2,339.89x = 6,046,714.39
  5. Step 5: Solve for x
    x = 6,046,714.39/2,339.89
  6. Step 6: Final answer
    x = 2,584.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.