Home / 3,707.25-5,115.86-2,028.74

Finding the Fourth Proportional to 3,707.25, 5,115.86 and 2,028.74

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Solution

The fourth proportional to 3,707.25, 5,115.86 and 2,028.74 is: 2,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.25 : 5,115.86 = 2,028.74 : x
  2. Step 2: Convert to fraction form
    3,707.25/5,115.86 = 2,028.74/x
  3. Step 3: Cross multiply
    3,707.25x = 5,115.86 × 2,028.74
  4. Step 4: Simplify right side
    3,707.25x = 10,378,714.09
  5. Step 5: Solve for x
    x = 10,378,714.09/3,707.25
  6. Step 6: Final answer
    x = 2,799.57

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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.