Home / 3,963.75-5,470.14-2,195.36

Finding the Fourth Proportional to 3,963.75, 5,470.14 and 2,195.36

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Solution

The fourth proportional to 3,963.75, 5,470.14 and 2,195.36 is: 3,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.75 : 5,470.14 = 2,195.36 : x
  2. Step 2: Convert to fraction form
    3,963.75/5,470.14 = 2,195.36/x
  3. Step 3: Cross multiply
    3,963.75x = 5,470.14 × 2,195.36
  4. Step 4: Simplify right side
    3,963.75x = 12,008,926.55
  5. Step 5: Solve for x
    x = 12,008,926.55/3,963.75
  6. Step 6: Final answer
    x = 3,029.69

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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.