Home / 3,808.66-5,255.59-2,236.45

Finding the Fourth Proportional to 3,808.66, 5,255.59 and 2,236.45

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Solution

The fourth proportional to 3,808.66, 5,255.59 and 2,236.45 is: 3,086.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.66 : 5,255.59 = 2,236.45 : x
  2. Step 2: Convert to fraction form
    3,808.66/5,255.59 = 2,236.45/x
  3. Step 3: Cross multiply
    3,808.66x = 5,255.59 × 2,236.45
  4. Step 4: Simplify right side
    3,808.66x = 11,753,864.26
  5. Step 5: Solve for x
    x = 11,753,864.26/3,808.66
  6. Step 6: Final answer
    x = 3,086.09

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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.