Home / 3,721.48-5,135.67-2,042.84

Finding the Fourth Proportional to 3,721.48, 5,135.67 and 2,042.84

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Solution

The fourth proportional to 3,721.48, 5,135.67 and 2,042.84 is: 2,819.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.48 : 5,135.67 = 2,042.84 : x
  2. Step 2: Convert to fraction form
    3,721.48/5,135.67 = 2,042.84/x
  3. Step 3: Cross multiply
    3,721.48x = 5,135.67 × 2,042.84
  4. Step 4: Simplify right side
    3,721.48x = 10,491,364.94
  5. Step 5: Solve for x
    x = 10,491,364.94/3,721.48
  6. Step 6: Final answer
    x = 2,819.14

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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.