Home / 3,966.71-5,474.31-2,288.09

Finding the Fourth Proportional to 3,966.71, 5,474.31 and 2,288.09

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Solution

The fourth proportional to 3,966.71, 5,474.31 and 2,288.09 is: 3,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.71 : 5,474.31 = 2,288.09 : x
  2. Step 2: Convert to fraction form
    3,966.71/5,474.31 = 2,288.09/x
  3. Step 3: Cross multiply
    3,966.71x = 5,474.31 × 2,288.09
  4. Step 4: Simplify right side
    3,966.71x = 12,525,702.53
  5. Step 5: Solve for x
    x = 12,525,702.53/3,966.71
  6. Step 6: Final answer
    x = 3,157.71

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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.