Home / 5,171.63-7,138.06-3,076.97

Finding the Fourth Proportional to 5,171.63, 7,138.06 and 3,076.97

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Solution

The fourth proportional to 5,171.63, 7,138.06 and 3,076.97 is: 4,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.63 : 7,138.06 = 3,076.97 : x
  2. Step 2: Convert to fraction form
    5,171.63/7,138.06 = 3,076.97/x
  3. Step 3: Cross multiply
    5,171.63x = 7,138.06 × 3,076.97
  4. Step 4: Simplify right side
    5,171.63x = 21,963,553.10
  5. Step 5: Solve for x
    x = 21,963,553.10/5,171.63
  6. Step 6: Final answer
    x = 4,246.93

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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.