Home / 3,707.22-5,115.76-2,028.30

Finding the Fourth Proportional to 3,707.22, 5,115.76 and 2,028.30

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Solution

The fourth proportional to 3,707.22, 5,115.76 and 2,028.30 is: 2,798.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.22 : 5,115.76 = 2,028.30 : x
  2. Step 2: Convert to fraction form
    3,707.22/5,115.76 = 2,028.30/x
  3. Step 3: Cross multiply
    3,707.22x = 5,115.76 × 2,028.30
  4. Step 4: Simplify right side
    3,707.22x = 10,376,270.43
  5. Step 5: Solve for x
    x = 10,376,270.43/3,707.22
  6. Step 6: Final answer
    x = 2,798.94

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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.