Home / 3,156.92-4,735.94-1,307.03

Finding the Fourth Proportional to 3,156.92, 4,735.94 and 1,307.03

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Solution

The fourth proportional to 3,156.92, 4,735.94 and 1,307.03 is: 1,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.92 : 4,735.94 = 1,307.03 : x
  2. Step 2: Convert to fraction form
    3,156.92/4,735.94 = 1,307.03/x
  3. Step 3: Cross multiply
    3,156.92x = 4,735.94 × 1,307.03
  4. Step 4: Simplify right side
    3,156.92x = 6,190,020.96
  5. Step 5: Solve for x
    x = 6,190,020.96/3,156.92
  6. Step 6: Final answer
    x = 1,960.78

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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.