Home / 3,706.70-5,115.44-2,135.30

Finding the Fourth Proportional to 3,706.70, 5,115.44 and 2,135.30

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Solution

The fourth proportional to 3,706.70, 5,115.44 and 2,135.30 is: 2,946.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.70 : 5,115.44 = 2,135.30 : x
  2. Step 2: Convert to fraction form
    3,706.70/5,115.44 = 2,135.30/x
  3. Step 3: Cross multiply
    3,706.70x = 5,115.44 × 2,135.30
  4. Step 4: Simplify right side
    3,706.70x = 10,922,999.03
  5. Step 5: Solve for x
    x = 10,922,999.03/3,706.70
  6. Step 6: Final answer
    x = 2,946.83

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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.