Home / 3,717.09-5,129.19-2,123.82

Finding the Fourth Proportional to 3,717.09, 5,129.19 and 2,123.82

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Solution

The fourth proportional to 3,717.09, 5,129.19 and 2,123.82 is: 2,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.09 : 5,129.19 = 2,123.82 : x
  2. Step 2: Convert to fraction form
    3,717.09/5,129.19 = 2,123.82/x
  3. Step 3: Cross multiply
    3,717.09x = 5,129.19 × 2,123.82
  4. Step 4: Simplify right side
    3,717.09x = 10,893,476.31
  5. Step 5: Solve for x
    x = 10,893,476.31/3,717.09
  6. Step 6: Final answer
    x = 2,930.65

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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.