Home / 3,706.75-5,115.17-2,028.23

Finding the Fourth Proportional to 3,706.75, 5,115.17 and 2,028.23

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Solution

The fourth proportional to 3,706.75, 5,115.17 and 2,028.23 is: 2,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.75 : 5,115.17 = 2,028.23 : x
  2. Step 2: Convert to fraction form
    3,706.75/5,115.17 = 2,028.23/x
  3. Step 3: Cross multiply
    3,706.75x = 5,115.17 × 2,028.23
  4. Step 4: Simplify right side
    3,706.75x = 10,374,731.11
  5. Step 5: Solve for x
    x = 10,374,731.11/3,706.75
  6. Step 6: Final answer
    x = 2,798.88

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Half scale
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Double scale
Find fourth proportional to 3,707.75, 5,116.54 and 2,029.23
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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.