Home / 3,721.17-5,135.13-2,042.49

Finding the Fourth Proportional to 3,721.17, 5,135.13 and 2,042.49

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Solution

The fourth proportional to 3,721.17, 5,135.13 and 2,042.49 is: 2,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.17 : 5,135.13 = 2,042.49 : x
  2. Step 2: Convert to fraction form
    3,721.17/5,135.13 = 2,042.49/x
  3. Step 3: Cross multiply
    3,721.17x = 5,135.13 × 2,042.49
  4. Step 4: Simplify right side
    3,721.17x = 10,488,451.67
  5. Step 5: Solve for x
    x = 10,488,451.67/3,721.17
  6. Step 6: Final answer
    x = 2,818.59

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1.5x scale

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.