Home / 4,121.70-6,176.94-3,432.72

Finding the Fourth Proportional to 4,121.70, 6,176.94 and 3,432.72

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Solution

The fourth proportional to 4,121.70, 6,176.94 and 3,432.72 is: 5,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.70 : 6,176.94 = 3,432.72 : x
  2. Step 2: Convert to fraction form
    4,121.70/6,176.94 = 3,432.72/x
  3. Step 3: Cross multiply
    4,121.70x = 6,176.94 × 3,432.72
  4. Step 4: Simplify right side
    4,121.70x = 21,203,705.48
  5. Step 5: Solve for x
    x = 21,203,705.48/4,121.70
  6. Step 6: Final answer
    x = 5,144.41

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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.