Home / 3,195.71-4,789.52-1,438.84

Finding the Fourth Proportional to 3,195.71, 4,789.52 and 1,438.84

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Solution

The fourth proportional to 3,195.71, 4,789.52 and 1,438.84 is: 2,156.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.71 : 4,789.52 = 1,438.84 : x
  2. Step 2: Convert to fraction form
    3,195.71/4,789.52 = 1,438.84/x
  3. Step 3: Cross multiply
    3,195.71x = 4,789.52 × 1,438.84
  4. Step 4: Simplify right side
    3,195.71x = 6,891,352.96
  5. Step 5: Solve for x
    x = 6,891,352.96/3,195.71
  6. Step 6: Final answer
    x = 2,156.44

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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.