Home / 3,707.10-5,115.78-2,028.45

Finding the Fourth Proportional to 3,707.10, 5,115.78 and 2,028.45

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Solution

The fourth proportional to 3,707.10, 5,115.78 and 2,028.45 is: 2,799.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.10 : 5,115.78 = 2,028.45 : x
  2. Step 2: Convert to fraction form
    3,707.10/5,115.78 = 2,028.45/x
  3. Step 3: Cross multiply
    3,707.10x = 5,115.78 × 2,028.45
  4. Step 4: Simplify right side
    3,707.10x = 10,377,103.94
  5. Step 5: Solve for x
    x = 10,377,103.94/3,707.10
  6. Step 6: Final answer
    x = 2,799.25

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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.