Home / 3,963.40-5,470.19-2,548.84

Finding the Fourth Proportional to 3,963.40, 5,470.19 and 2,548.84

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Solution

The fourth proportional to 3,963.40, 5,470.19 and 2,548.84 is: 3,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.40 : 5,470.19 = 2,548.84 : x
  2. Step 2: Convert to fraction form
    3,963.40/5,470.19 = 2,548.84/x
  3. Step 3: Cross multiply
    3,963.40x = 5,470.19 × 2,548.84
  4. Step 4: Simplify right side
    3,963.40x = 13,942,639.08
  5. Step 5: Solve for x
    x = 13,942,639.08/3,963.40
  6. Step 6: Final answer
    x = 3,517.85

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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.