Home / 3,975.81-5,963.78-2,219.79

Finding the Fourth Proportional to 3,975.81, 5,963.78 and 2,219.79

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Solution

The fourth proportional to 3,975.81, 5,963.78 and 2,219.79 is: 3,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.81 : 5,963.78 = 2,219.79 : x
  2. Step 2: Convert to fraction form
    3,975.81/5,963.78 = 2,219.79/x
  3. Step 3: Cross multiply
    3,975.81x = 5,963.78 × 2,219.79
  4. Step 4: Simplify right side
    3,975.81x = 13,238,339.21
  5. Step 5: Solve for x
    x = 13,238,339.21/3,975.81
  6. Step 6: Final answer
    x = 3,329.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.