Home / 4,156.75-6,229.73-1,688.70

Finding the Fourth Proportional to 4,156.75, 6,229.73 and 1,688.70

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Solution

The fourth proportional to 4,156.75, 6,229.73 and 1,688.70 is: 2,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,156.75 : 6,229.73 = 1,688.70 : x
  2. Step 2: Convert to fraction form
    4,156.75/6,229.73 = 1,688.70/x
  3. Step 3: Cross multiply
    4,156.75x = 6,229.73 × 1,688.70
  4. Step 4: Simplify right side
    4,156.75x = 10,520,145.05
  5. Step 5: Solve for x
    x = 10,520,145.05/4,156.75
  6. Step 6: Final answer
    x = 2,530.86

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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.