Home / 3,423.63-5,137.56-2,191.92

Finding the Fourth Proportional to 3,423.63, 5,137.56 and 2,191.92

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Solution

The fourth proportional to 3,423.63, 5,137.56 and 2,191.92 is: 3,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.63 : 5,137.56 = 2,191.92 : x
  2. Step 2: Convert to fraction form
    3,423.63/5,137.56 = 2,191.92/x
  3. Step 3: Cross multiply
    3,423.63x = 5,137.56 × 2,191.92
  4. Step 4: Simplify right side
    3,423.63x = 11,261,128.73
  5. Step 5: Solve for x
    x = 11,261,128.73/3,423.63
  6. Step 6: Final answer
    x = 3,289.24

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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.