Home / 3,721.24-5,135.30-2,042.64

Finding the Fourth Proportional to 3,721.24, 5,135.30 and 2,042.64

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Solution

The fourth proportional to 3,721.24, 5,135.30 and 2,042.64 is: 2,818.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.24 : 5,135.30 = 2,042.64 : x
  2. Step 2: Convert to fraction form
    3,721.24/5,135.30 = 2,042.64/x
  3. Step 3: Cross multiply
    3,721.24x = 5,135.30 × 2,042.64
  4. Step 4: Simplify right side
    3,721.24x = 10,489,569.19
  5. Step 5: Solve for x
    x = 10,489,569.19/3,721.24
  6. Step 6: Final answer
    x = 2,818.84

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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.