Home / 3,706.86-5,115.47-2,028.26

Finding the Fourth Proportional to 3,706.86, 5,115.47 and 2,028.26

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Solution

The fourth proportional to 3,706.86, 5,115.47 and 2,028.26 is: 2,798.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.86 : 5,115.47 = 2,028.26 : x
  2. Step 2: Convert to fraction form
    3,706.86/5,115.47 = 2,028.26/x
  3. Step 3: Cross multiply
    3,706.86x = 5,115.47 × 2,028.26
  4. Step 4: Simplify right side
    3,706.86x = 10,375,467.46
  5. Step 5: Solve for x
    x = 10,375,467.46/3,706.86
  6. Step 6: Final answer
    x = 2,798.99

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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.