Home / 3,706.71-5,115.17-2,028.11

Finding the Fourth Proportional to 3,706.71, 5,115.17 and 2,028.11

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Solution

The fourth proportional to 3,706.71, 5,115.17 and 2,028.11 is: 2,798.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.71 : 5,115.17 = 2,028.11 : x
  2. Step 2: Convert to fraction form
    3,706.71/5,115.17 = 2,028.11/x
  3. Step 3: Cross multiply
    3,706.71x = 5,115.17 × 2,028.11
  4. Step 4: Simplify right side
    3,706.71x = 10,374,101.85
  5. Step 5: Solve for x
    x = 10,374,101.85/3,706.71
  6. Step 6: Final answer
    x = 2,798.74

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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.