Home / 4,861.26-7,285.74-2,640

Finding the Fourth Proportional to 4,861.26, 7,285.74 and 2,640

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Solution

The fourth proportional to 4,861.26, 7,285.74 and 2,640 is: 3,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,861.26 : 7,285.74 = 2,640 : x
  2. Step 2: Convert to fraction form
    4,861.26/7,285.74 = 2,640/x
  3. Step 3: Cross multiply
    4,861.26x = 7,285.74 × 2,640
  4. Step 4: Simplify right side
    4,861.26x = 19,234,353.60
  5. Step 5: Solve for x
    x = 19,234,353.60/4,861.26
  6. Step 6: Final answer
    x = 3,956.66

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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.