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Finding the Fourth Proportional to 4,984.73, 6,879.91 and 2,861.69

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Solution

The fourth proportional to 4,984.73, 6,879.91 and 2,861.69 is: 3,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.73 : 6,879.91 = 2,861.69 : x
  2. Step 2: Convert to fraction form
    4,984.73/6,879.91 = 2,861.69/x
  3. Step 3: Cross multiply
    4,984.73x = 6,879.91 × 2,861.69
  4. Step 4: Simplify right side
    4,984.73x = 19,688,164.63
  5. Step 5: Solve for x
    x = 19,688,164.63/4,984.73
  6. Step 6: Final answer
    x = 3,949.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.