Home / 3,935.96-5,431.52-2,258.36

Finding the Fourth Proportional to 3,935.96, 5,431.52 and 2,258.36

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Solution

The fourth proportional to 3,935.96, 5,431.52 and 2,258.36 is: 3,116.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.96 : 5,431.52 = 2,258.36 : x
  2. Step 2: Convert to fraction form
    3,935.96/5,431.52 = 2,258.36/x
  3. Step 3: Cross multiply
    3,935.96x = 5,431.52 × 2,258.36
  4. Step 4: Simplify right side
    3,935.96x = 12,266,289.06
  5. Step 5: Solve for x
    x = 12,266,289.06/3,935.96
  6. Step 6: Final answer
    x = 3,116.47

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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.