Home / 3,721.07-5,135.09-2,042.63

Finding the Fourth Proportional to 3,721.07, 5,135.09 and 2,042.63

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Solution

The fourth proportional to 3,721.07, 5,135.09 and 2,042.63 is: 2,818.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.07 : 5,135.09 = 2,042.63 : x
  2. Step 2: Convert to fraction form
    3,721.07/5,135.09 = 2,042.63/x
  3. Step 3: Cross multiply
    3,721.07x = 5,135.09 × 2,042.63
  4. Step 4: Simplify right side
    3,721.07x = 10,489,088.89
  5. Step 5: Solve for x
    x = 10,489,088.89/3,721.07
  6. Step 6: Final answer
    x = 2,818.84

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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.