Home / 4,983.38-6,879.54-3,861.78

Finding the Fourth Proportional to 4,983.38, 6,879.54 and 3,861.78

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Solution

The fourth proportional to 4,983.38, 6,879.54 and 3,861.78 is: 5,331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.38 : 6,879.54 = 3,861.78 : x
  2. Step 2: Convert to fraction form
    4,983.38/6,879.54 = 3,861.78/x
  3. Step 3: Cross multiply
    4,983.38x = 6,879.54 × 3,861.78
  4. Step 4: Simplify right side
    4,983.38x = 26,567,269.98
  5. Step 5: Solve for x
    x = 26,567,269.98/4,983.38
  6. Step 6: Final answer
    x = 5,331.17

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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.