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Finding the Fourth Proportional to 6,881.94, 9,496.86 and 3,898.05

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Solution

The fourth proportional to 6,881.94, 9,496.86 and 3,898.05 is: 5,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.94 : 9,496.86 = 3,898.05 : x
  2. Step 2: Convert to fraction form
    6,881.94/9,496.86 = 3,898.05/x
  3. Step 3: Cross multiply
    6,881.94x = 9,496.86 × 3,898.05
  4. Step 4: Simplify right side
    6,881.94x = 37,019,235.12
  5. Step 5: Solve for x
    x = 37,019,235.12/6,881.94
  6. Step 6: Final answer
    x = 5,379.19

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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.