Home / 3,906.14-5,384.87-2,785.13

Finding the Fourth Proportional to 3,906.14, 5,384.87 and 2,785.13

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Solution

The fourth proportional to 3,906.14, 5,384.87 and 2,785.13 is: 3,839.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.14 : 5,384.87 = 2,785.13 : x
  2. Step 2: Convert to fraction form
    3,906.14/5,384.87 = 2,785.13/x
  3. Step 3: Cross multiply
    3,906.14x = 5,384.87 × 2,785.13
  4. Step 4: Simplify right side
    3,906.14x = 14,997,562.52
  5. Step 5: Solve for x
    x = 14,997,562.52/3,906.14
  6. Step 6: Final answer
    x = 3,839.48

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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.