Home / 3,706.47-5,115.85-2,215.27

Finding the Fourth Proportional to 3,706.47, 5,115.85 and 2,215.27

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Solution

The fourth proportional to 3,706.47, 5,115.85 and 2,215.27 is: 3,057.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.47 : 5,115.85 = 2,215.27 : x
  2. Step 2: Convert to fraction form
    3,706.47/5,115.85 = 2,215.27/x
  3. Step 3: Cross multiply
    3,706.47x = 5,115.85 × 2,215.27
  4. Step 4: Simplify right side
    3,706.47x = 11,332,989.03
  5. Step 5: Solve for x
    x = 11,332,989.03/3,706.47
  6. Step 6: Final answer
    x = 3,057.62

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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.