Home / 3,936.50-5,904.75-1,628.06

Finding the Fourth Proportional to 3,936.50, 5,904.75 and 1,628.06

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Solution

The fourth proportional to 3,936.50, 5,904.75 and 1,628.06 is: 2,442.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.50 : 5,904.75 = 1,628.06 : x
  2. Step 2: Convert to fraction form
    3,936.50/5,904.75 = 1,628.06/x
  3. Step 3: Cross multiply
    3,936.50x = 5,904.75 × 1,628.06
  4. Step 4: Simplify right side
    3,936.50x = 9,613,287.29
  5. Step 5: Solve for x
    x = 9,613,287.29/3,936.50
  6. Step 6: Final answer
    x = 2,442.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.