Home / 2,456.78-3,394.67-1,963.49

Finding the Fourth Proportional to 2,456.78, 3,394.67 and 1,963.49

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Solution

The fourth proportional to 2,456.78, 3,394.67 and 1,963.49 is: 2,713.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.78 : 3,394.67 = 1,963.49 : x
  2. Step 2: Convert to fraction form
    2,456.78/3,394.67 = 1,963.49/x
  3. Step 3: Cross multiply
    2,456.78x = 3,394.67 × 1,963.49
  4. Step 4: Simplify right side
    2,456.78x = 6,665,373.81
  5. Step 5: Solve for x
    x = 6,665,373.81/2,456.78
  6. Step 6: Final answer
    x = 2,713.06

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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.